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Field Descriptions
53 matching records found.
Label Query: Genus = "Cotoneaster", Species = "horizontalis"
Rosaceae
1. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Luther Burbank Park, northeast end of Mercer Island, Lake Washington.
Elev. 16 ft. T24N R5E S6 SW 1/4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Bird sown weed at waterline, below 2 ft embankment, fruit red. Phenology: Vegetative. Origin: Introduced.
WTU 342089
P. F. Zika 14536    6 Oct 1999
with F. Weinmann
1. Cotoneaster horizontalis Dcne.
Database ID
9759 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
342089 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14536 
Other Collectors
F. Weinmann 
Date Collected
6 Oct 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Luther Burbank Park, northeast end of Mercer Island, Lake Washington. 
Elevation
16 ft. 
Coordinates
T24N R5E S6 SW 1/4 
Site Description
 
Specimen Notes
Bird sown weed at waterline, below 2 ft embankment, fruit red. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
2. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
Orcas Island, northwest shore of Cascade Lake.
Elev. 346 ft. T37N R1W S31 NE. Datum: WGS 84. Coordinate uncertainty: 600 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
With Pseudotsuga, Rosa nutkana, Physocarpus. Fruit red, branching planar, spreading from cultivation in area, wild near lakeshore. Phenology: Vegetative. Origin: Introduced.
WTU 347186
P. F. Zika 14151    28 Aug 1999
2. Cotoneaster horizontalis Dcne.
Database ID
9760 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347186 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14151 
Other Collectors
 
Date Collected
28 Aug 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
Orcas Island, northwest shore of Cascade Lake. 
Elevation
346 ft. 
Coordinates
T37N R1W S31 NE 
Site Description
With Pseudotsuga, Rosa nutkana, Physocarpus. 
Specimen Notes
Fruit red, branching planar, spreading from cultivation in area, wild near lakeshore. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
3. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
San Juan Island, Puget Sound, 0.5 miles SE of Mineral Point.
Elev. 50 ft. T36N R3W S28. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
Woods road. Bird -sown adventive, with Gaultheria shallon, Pseudotusga stand; distant from any cultivated plants. Phenology: Vegetative. Origin: Introduced.
WTU 347328
P. F. Zika 15614    28 Oct 2000
3. Cotoneaster horizontalis Dcne.
Database ID
21768 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347328 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
15614 
Other Collectors
 
Date Collected
28 Oct 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Island, Puget Sound, 0.5 miles SE of Mineral Point. 
Elevation
50 ft. 
Coordinates
T36N R3W S28 
Site Description
Woods road. 
Specimen Notes
Bird -sown adventive, with Gaultheria shallon, Pseudotusga stand; distant from any cultivated plants. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
4. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Washington Park Arboretum, Montlake, Seattle.
Elev. 66 ft. T25N R4E S21 SE. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Dry, brushy slope, E aspect, full sun. Bird-sown adventive shrub 1 m tall; fruit red, obovate, shiny, 7-9 mm long, 3 stones; leaves dark green, flat, shiny, red as deciduous; with Pteridium, Corylus, Rubus. Phenology: Fruits. Origin: Introduced.
WTU 34721
P. F. Zika 15675    13 Nov 2000
4. Cotoneaster horizontalis Dcne.
Database ID
21791 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
34721 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
2. Cotoneaster horizontalis Dcne.
    Annotated by Jeanette Fryer, 2001.  
Type Notes
 
Collector
P. F. Zika 
Collection #
15675 
Other Collectors
 
Date Collected
13 Nov 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Washington Park Arboretum, Montlake, Seattle. 
Elevation
66 ft. 
Coordinates
T25N R4E S21 SE 
Site Description
Dry, brushy slope, E aspect, full sun. 
Specimen Notes
Bird-sown adventive shrub 1 m tall; fruit red, obovate, shiny, 7-9 mm long, 3 stones; leaves dark green, flat, shiny, red as deciduous; with Pteridium, Corylus, Rubus. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
5. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lane County:
West Eugene, vicinity of Willow Creek, The Nature Conservancy natural area, ca. 0.3 km west of Bertleson Drive.
Elev. 400 ft. T18S R4W S3 NW. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Seasonally wet ground, full sun. Bird-sown adventive; shrubs 1-1.5 m tall; leaves slightly shiny; fruits with 3 stones, solitary. Phenology: Fruits. Origin: Introduced.
WTU 347327
P. F. Zika 11590    28 May 1992
5. Cotoneaster horizontalis Dcne.
Database ID
21792 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347327 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
11590 
Other Collectors
 
Date Collected
28 May 1992 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
West Eugene, vicinity of Willow Creek, The Nature Conservancy natural area, ca. 0.3 km west of Bertleson Drive. 
Elevation
400 ft. 
Coordinates
T18S R4W S3 NW 
Site Description
Seasonally wet ground, full sun. 
Specimen Notes
Bird-sown adventive; shrubs 1-1.5 m tall; leaves slightly shiny; fruits with 3 stones, solitary. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
6. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Arboretum, Washington Park, Seattle.
Elev. 82 ft. T25N R4E S21. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
In partial shade. Bird-sown seedlings, widely scattered; planar branching; red fruit. Phenology: Fruits. Origin: Introduced.
WTU 347319
P. F. Zika 14733    17 Nov 1999
with A. L. Jacobson.
6. Cotoneaster horizontalis Dcne.
Database ID
21793 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347319 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14733 
Other Collectors
A. L. Jacobson. 
Date Collected
17 Nov 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Arboretum, Washington Park, Seattle. 
Elevation
82 ft. 
Coordinates
T25N R4E S21 
Site Description
In partial shade. 
Specimen Notes
Bird-sown seedlings, widely scattered; planar branching; red fruit. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
7. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Montlake, Seattle, corner of 22nd Ave. & Louisa.
Elev. 66 ft. T25N R4E S21. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Partial shade. Bird-sown weed in rockery; red 3-seeded fruit. Phenology: Fruits. Origin: Introduced.
WTU 347318
P. F. Zika 14329    14 Sep 1999
7. Cotoneaster horizontalis Dcne.
Database ID
21794 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347318 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14329 
Other Collectors
 
Date Collected
14 Sep 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Montlake, Seattle, corner of 22nd Ave. & Louisa. 
Elevation
66 ft. 
Coordinates
T25N R4E S21 
Site Description
Partial shade. 
Specimen Notes
Bird-sown weed in rockery; red 3-seeded fruit. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
8. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Tillamook County:
TNC Cascade Head Preserve.
Elev. 820 ft. T6S R11W S14. Datum: WGS 84. Coordinate uncertainty: 1000 meters. Georeferenced by John Bassett. Coordinate Source: Digital map.
Upper meadows, S. aspect. Bird-sown shrub, deer-browsed, planar branching; rare weed in grassland, with Holcus lanatus. Phenology: Fruits. Origin: Introduced.
WTU 347317
P. F. Zika 9899    14 Aug 1986
8. Cotoneaster horizontalis Dcne.
Database ID
21795 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347317 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
9899 
Other Collectors
 
Date Collected
14 Aug 1986 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Tillamook 
Locality
TNC Cascade Head Preserve. 
Elevation
820 ft. 
Coordinates
T6S R11W S14 
Site Description
Upper meadows, S. aspect. 
Specimen Notes
Bird-sown shrub, deer-browsed, planar branching; rare weed in grassland, with Holcus lanatus. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
9. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Cascade Mountains of Western Washington: Cedar Falls Headquarters.
Elev. 1000 ft. 47° 25' 26" N, 121° 47' 3" W; T22N R8E S4.
Old town site of Cedar Falls, now houses offices for City of Seattle Cedar River Watershed. Disturbed ground, partly shady. Herringbone-planar branching. 1 meter tall, arching. Flower dark red with pake margin. Cultivated plant 30 meters away. Specimen bird-sown. Phenology: Flowers. Origin: Introduced.
WTU 350702
P. F. Zika 16080    26 May 2001
with Jeff Walker, David Kiefer, Kari Stices, Bill Winije
9. Cotoneaster horizontalis Dcne.
Database ID
23587 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
350702 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by David Giblin, 1 2002.  
Type Notes
 
Collector
P. F. Zika 
Collection #
16080 
Other Collectors
Jeff Walker, David Kiefer, Kari Stices, Bill Winije 
Date Collected
26 May 2001 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Cascade Mountains of Western Washington: Cedar Falls Headquarters. 
Elevation
1000 ft. 
Coordinates
47° 25' 26" N, 121° 47' 3" W; T22N R8E S4 
Site Description
Old town site of Cedar Falls, now houses offices for City of Seattle Cedar River Watershed. Disturbed ground, partly shady. 
Specimen Notes
Herringbone-planar branching. 1 meter tall, arching. Flower dark red with pake margin. Cultivated plant 30 meters away. Specimen bird-sown. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
10. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Jefferson County:
South Indian Island Trail, southwest shore of Indian Island, Puget Sound.
Elev. 13 ft. 48° 1.8' N, 122° 43.5' W; T29N R1E S6.
Adventive shrub 1 meter tall, planar branching, among native shrubs, with Arbutus, Lonicera hispidula, Pseudotsuga, Gaultheria, Holodiscus. Phenology: Fertile. Origin: Introduced.
WTU 359134
P. F. Zika 20171    9 Sep 2004
with F. Weinmann
10. Cotoneaster horizontalis Dcne.
Database ID
71413 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
359134 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
20171 
Other Collectors
F. Weinmann 
Date Collected
9 Sep 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
South Indian Island Trail, southwest shore of Indian Island, Puget Sound. 
Elevation
13 ft. 
Coordinates
48° 1.8' N, 122° 43.5' W; T29N R1E S6 
Site Description
 
Specimen Notes
Adventive shrub 1 meter tall, planar branching, among native shrubs, with Arbutus, Lonicera hispidula, Pseudotsuga, Gaultheria, Holodiscus. 
Phenology
Fertile 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
11. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lane County:
TNC Willow Creek Preserve; south of West 18th Avenue; Eugene.
Elev. 400 ft. 44° 2.2' N, 123° 9.8' W; T18S R4W S4.
Shaded damp thicket, shrub and tree-invaded wet prairie remnant, near East Fork Willow Creek, with Fraxinus latifolia, Crataegus suksdorfii, C. monogyna, Rosa mutiflora, Pyrus communis, Amelanchier alnifolia. Adventive shrub 1 meter tall; branching planar; shiny flat leaves; fruit immature,obovoid-globose; 1-3 fruit per inflorescence; 2-3 seed per fruit. Phenology: Fruits.
WTU 359130
Peter F. Zika 20100    27 Aug 2004
11. Cotoneaster horizontalis Dcne.
Database ID
88322 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
359130 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Remarks: [= collection number 19572] 
Type Notes
 
Collector
Peter F. Zika 
Collection #
20100 
Other Collectors
 
Date Collected
27 Aug 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
TNC Willow Creek Preserve; south of West 18th Avenue; Eugene. 
Elevation
400 ft. 
Coordinates
44° 2.2' N, 123° 9.8' W; T18S R4W S4 
Site Description
Shaded damp thicket, shrub and tree-invaded wet prairie remnant, near East Fork Willow Creek, with Fraxinus latifolia, Crataegus suksdorfii, C. monogyna, Rosa mutiflora, Pyrus communis, Amelanchier alnifolia. 
Specimen Notes
Adventive shrub 1 meter tall; branching planar; shiny flat leaves; fruit immature,obovoid-globose; 1-3 fruit per inflorescence; 2-3 seed per fruit. 
Phenology
Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Rosaceae
12. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Kubota Gardens and Renton Avenue South, Rainier Beach, Seattle.
Elev. 164 ft. T23N R4E S2 NW 1/4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Red fruit, branching planar, low shrubs, cultivated here and commonly reseeding where sown by birds, thickets. Phenology: Fruits. Origin: Introduced.
WTU 347188
P. F. Zika 14702    3 Nov 1999
12. Cotoneaster horizontalis Dcne.
Database ID
88325 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347188 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14702 
Other Collectors
 
Date Collected
3 Nov 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Kubota Gardens and Renton Avenue South, Rainier Beach, Seattle. 
Elevation
164 ft. 
Coordinates
T23N R4E S2 NW 1/4 
Site Description
 
Specimen Notes
Red fruit, branching planar, low shrubs, cultivated here and commonly reseeding where sown by birds, thickets. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
13. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Clarke Beach Park, southeast end of Mercer Island, Lake Washington.
Elev. 33 ft. T24N R5E S30. Datum: NAD 27. Coordinate uncertainty: 200 meters. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
Self-sown seedlings common in vicinity. Phenology: Fruits. Cultivated.
WTU 347192
P. F. Zika 14522    6 Oct 1999
13. Cotoneaster horizontalis Dcne.
Database ID
88329 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347192 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14522 
Other Collectors
 
Date Collected
6 Oct 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Clarke Beach Park, southeast end of Mercer Island, Lake Washington. 
Elevation
33 ft. 
Coordinates
T24N R5E S30 
Site Description
 
Specimen Notes
Self-sown seedlings common in vicinity. 
Phenology
Fruits 
Origin
 
Cultivated?
Yes 
Imaged?
No 

Rosaceae
14. Cotoneaster horizontalis Dcne.
Canada, British Columbia
Route 14, Port Renfrew, Vancouver Island.
Elev. 65 ft.
Red (2) 3-seed fruit, bird-sown, or perhaps long-persistant, at top of rock roadcut, among small Tsuga heterophylla, Thuja, Gaultheria shallon. Phenology: Fruits.
WTU 342069
P. F. Zika 14782    31 Dec 1999
14. Cotoneaster horizontalis Dcne.
Database ID
88335 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
342069 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14782 
Other Collectors
 
Date Collected
31 Dec 1999 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Route 14, Port Renfrew, Vancouver Island. 
Elevation
65 ft. 
Coordinates
 
Site Description
 
Specimen Notes
Red (2) 3-seed fruit, bird-sown, or perhaps long-persistant, at top of rock roadcut, among small Tsuga heterophylla, Thuja, Gaultheria shallon. 
Phenology
Fruits 
Origin
 
Cultivated?
No 
Imaged?
No 

Rosaceae
15. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
South end of arboretum (loc. # 1S-5E, acc. # X-690A), along south end of Arboretum Drive East, Washington Park. Seattle.
Elev. 65 ft. T25N R4E S28 NE 1/4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Shrub 0.8 meters tall, full sun, sterile heavily pruned, leaves red, deciduous, south end of arboretum. Phenology: Vegetative. Cultivated.
WTU 346970
Peter F. Zika 15641    3 Nov 2000
15. Cotoneaster horizontalis Dcne.
Database ID
88338 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
346970 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
15641 
Other Collectors
 
Date Collected
3 Nov 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
South end of arboretum (loc. # 1S-5E, acc. # X-690A), along south end of Arboretum Drive East, Washington Park. Seattle. 
Elevation
65 ft. 
Coordinates
T25N R4E S28 NE 1/4 
Site Description
 
Specimen Notes
Shrub 0.8 meters tall, full sun, sterile heavily pruned, leaves red, deciduous, south end of arboretum. 
Phenology
Vegetative 
Origin
 
Cultivated?
Yes 
Imaged?
No 

Rosaceae
16. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Grays Harbor County:
Near junction of Route 12 and Linkshire Terrace. 1 mile southeast of Lake Aberdeen.
Elev. 65 ft. T17N R8W S7 SE 1/4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
In deep shade of Tsuga heterophylla, Picea sitchensis, Alnus rubra, with Rubus discolor, R. ursinus, Gaultheria shallon, Vaccinium parvifolium. Divaricate shrub 1 meter tall, red fruit, surley planted here and long persisting. Phenology: Fruits. Cultivated.
WTU 342541
P. F. Zika 14480    4 Oct 1999
16. Cotoneaster horizontalis Dcne.
Database ID
88345 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
342541 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14480 
Other Collectors
 
Date Collected
4 Oct 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Grays Harbor 
Locality
Near junction of Route 12 and Linkshire Terrace. 1 mile southeast of Lake Aberdeen. 
Elevation
65 ft. 
Coordinates
T17N R8W S7 SE 1/4 
Site Description
In deep shade of Tsuga heterophylla, Picea sitchensis, Alnus rubra, with Rubus discolor, R. ursinus, Gaultheria shallon, Vaccinium parvifolium. 
Specimen Notes
Divaricate shrub 1 meter tall, red fruit, surley planted here and long persisting. 
Phenology
Fruits 
Origin
 
Cultivated?
Yes 
Imaged?
No 

Rosaceae
17. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
NW shore of Union Bay, Lake Washington, Seattle.
Elev. 13 ft. T25N R4E S16 SE 1/4. Datum: NAD 27. Coordinate uncertainty: 805 meters. Georeferenced by Ben Legler. Coordinate Source: TRS2LL.
Weed in rotting wooden piling, with Holcus lanathus, Betula pendula. Phenology: Fruits. Origin: Introduced.
WTU 347185
P. F. Zika 14142    27 Aug 1999
with A. L. Jacobson
17. Cotoneaster horizontalis Dcne.
Database ID
88351 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347185 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
14142 
Other Collectors
A. L. Jacobson 
Date Collected
27 Aug 1999 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
NW shore of Union Bay, Lake Washington, Seattle. 
Elevation
13 ft. 
Coordinates
T25N R4E S16 SE 1/4 
Site Description
Weed in rotting wooden piling, with Holcus lanathus, Betula pendula. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
18. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Multnomah County:
Near junction of Macadam Avenue and Taylor's Ferry Road, southwest Portland.
Elev. 65 ft. T1S R1E.
Bird-sown weed on curbstone, shrub, stiffly arching, 0.5 meters tall, shiny flat leaves, 3 (4) seeds per fruit, near ornamental plantings.¶Specimen used for illustration in Revision of Flora of the Pacific Northwest, WTU Herbarium, 2015. Phenology: Fruits.
WTU 347187; Barcode: WTU-V-021959
P. F. Zika 15133    28 Jul 2000
with F. Weinmann
18. Cotoneaster horizontalis Dcne.
Database ID
88355 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
347187 
Barcode
WTU-V-021959 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
15133 
Other Collectors
F. Weinmann 
Date Collected
28 Jul 2000 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Near junction of Macadam Avenue and Taylor's Ferry Road, southwest Portland. 
Elevation
65 ft. 
Coordinates
T1S R1E 
Site Description
 
Specimen Notes
Bird-sown weed on curbstone, shrub, stiffly arching, 0.5 meters tall, shiny flat leaves, 3 (4) seeds per fruit, near ornamental plantings.¶Specimen used for illustration in Revision of Flora of the Pacific Northwest, WTU Herbarium, 2015. 
Phenology
Fruits 
Origin
 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
19. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Jefferson County:
Kai Tai Lagoon Park, Quimper Peninsula, Port Townsend Bay, Port Townsend.
48.11722°, -122.75917°. Datum: WGS 84. Coordinate uncertainty: 10000 meters. Georeferenced by WTU Staff. Coordinate Source: GeoLocate.
With Lolium, and other grasses, distrubed ground on fill. Shrub .75 meters tall, adventive. Phenology: Fruits. Origin: Introduced.
WTU 361987
Fred Weinmann 228    3 Jun 2004
19. Cotoneaster horizontalis Dcne.
Database ID
114549 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
361987 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by P. F. Zika, 2005.  
Type Notes
 
Collector
Fred Weinmann 
Collection #
228 
Other Collectors
 
Date Collected
3 Jun 2004 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Kai Tai Lagoon Park, Quimper Peninsula, Port Townsend Bay, Port Townsend. 
Elevation
 
Coordinates
48.11722°, -122.75917° 
Site Description
With Lolium, and other grasses, distrubed ground on fill. 
Specimen Notes
Shrub .75 meters tall, adventive. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
20. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Jefferson County:
Port Townsend; Cappy's Trails; 100 meters south from parking area at end of Wilamette Street.
48° 7.93' N, 122° 48.24' W.
Along trail with Pseudotsuga meziesii and Thuja plicata saplings, Holodiscus discolor and Rubus ursinus. Phenology: Fruits. Origin: Introduced.
WTU 363739
Fred Weinmann 304    6 Sep 2005
with Ann Weinmann
20. Cotoneaster horizontalis Dcne.
Database ID
152860 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
363739 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Fred Weinmann 
Collection #
304 
Other Collectors
Ann Weinmann 
Date Collected
6 Sep 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Jefferson 
Locality
Port Townsend; Cappy's Trails; 100 meters south from parking area at end of Wilamette Street. 
Elevation
 
Coordinates
48° 7.93' N, 122° 48.24' W 
Site Description
Along trail with Pseudotsuga meziesii and Thuja plicata saplings, Holodiscus discolor and Rubus ursinus. 
Specimen Notes
 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
21. Cotoneaster horizontalis Dcne.
Canada, British Columbia
Vancouver. Near East Mall, campus of University of British Columbia.
49° 15.8' N, 123° 14.9' W.
Partial shade. Bird-sown shrub adventive in Prunus hedge, 0.5 meter tall, stiff herringbone-planar branching, deciduous, leaves shiny, flat 7-11 x 5-8 millimeters wide; immature fruit shiny, obovate, 3-4 pyrenes; 10 stamens. Phenology: Fruits. Origin: Introduced.
WTU 364176
Peter F. Zika 22755    14 Jun 2006
21. Cotoneaster horizontalis Dcne.
Database ID
155872 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
364176 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22755 
Other Collectors
 
Date Collected
14 Jun 2006 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Vancouver. Near East Mall, campus of University of British Columbia. 
Elevation
 
Coordinates
49° 15.8' N, 123° 14.9' W 
Site Description
Partial shade. 
Specimen Notes
Bird-sown shrub adventive in Prunus hedge, 0.5 meter tall, stiff herringbone-planar branching, deciduous, leaves shiny, flat 7-11 x 5-8 millimeters wide; immature fruit shiny, obovate, 3-4 pyrenes; 10 stamens. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
22. Cotoneaster horizontalis Dcne.
Canada, British Columbia
Junction of Eagleridge Drive and TransCanada Highway (Exit 2), south of Horseshoe Bay.
Elev. 393 ft. 49° 21.6' N, 123° 16.4' W.
Sprawling adventive on sunny cliffbase with Arbutus, Cytisus, Holodiscus, Amelanchier alnifolia, Pseudotsuga, Danthonia, Selaginella, mossy cliffs and balds. Shrub 0.7 meters tall, deciduous. Leaves shiny and flat, 5 to 12 millimeters long by 4 to 10 millimeters wide; 1 flower per infl. Immature fruit obovate, 5 millimeters long, 10 stamens, 3 styles. Phenology: Fruits. Origin: Introduced.
WTU 365553
Peter F. Zika 22765    14 Jun 2006
22. Cotoneaster horizontalis Dcne.
Database ID
157558 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
365553 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22765 
Other Collectors
 
Date Collected
14 Jun 2006 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Junction of Eagleridge Drive and TransCanada Highway (Exit 2), south of Horseshoe Bay. 
Elevation
393 ft. 
Coordinates
49° 21.6' N, 123° 16.4' W 
Site Description
Sprawling adventive on sunny cliffbase with Arbutus, Cytisus, Holodiscus, Amelanchier alnifolia, Pseudotsuga, Danthonia, Selaginella, mossy cliffs and balds. 
Specimen Notes
Shrub 0.7 meters tall, deciduous. Leaves shiny and flat, 5 to 12 millimeters long by 4 to 10 millimeters wide; 1 flower per infl. Immature fruit obovate, 5 millimeters long, 10 stamens, 3 styles. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
23. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Bothell. Near junction of 120th Avenue Northeast, and North Creek Parkway South.
Elev. 65 ft. 47° 46' N, 122° 10.5' W.
Weed in irrigated hedgerow, with other bird-sown adventives like Sorbus aucuparia, Ilex aquifolium, Rubus armeniacus, Solanum dulcamara, Crataegus monogyna, partial shade of cultivated Acer rubrum. Rare escape from cultivation, sterile shoot 0.5 meters tall; planar herringbone branching, leaves shiny, flat, 0.9-1.5 centimeters long, leaves turn red. Phenology: Vegetative. Origin: Introduced.
WTU 365891
Peter F. Zika 22444    2 Oct 2005
23. Cotoneaster horizontalis Dcne.
Database ID
158741 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
365891 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22444 
Other Collectors
 
Date Collected
2 Oct 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Bothell. Near junction of 120th Avenue Northeast, and North Creek Parkway South. 
Elevation
65 ft. 
Coordinates
47° 46' N, 122° 10.5' W 
Site Description
Weed in irrigated hedgerow, with other bird-sown adventives like Sorbus aucuparia, Ilex aquifolium, Rubus armeniacus, Solanum dulcamara, Crataegus monogyna, partial shade of cultivated Acer rubrum. 
Specimen Notes
Rare escape from cultivation, sterile shoot 0.5 meters tall; planar herringbone branching, leaves shiny, flat, 0.9-1.5 centimeters long, leaves turn red. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
24. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. Turn Island. Large island 0.25 miles off the east shore of San Juan Island.
48° 31.97' N, 122° 58.22' W. Datum: NAD 83. Coordinate Source: Digital map.
One prostrate shrub under Arbutus; northeast end of island. Phenology: Fruits. Origin: Introduced.
WTU 376188
David Giblin 1291    20 Sep 2007
with Phil Green, Megan Jensen, Peter Dunwiddie, Ted Thomas
24. Cotoneaster horizontalis Dcne.
Database ID
158785 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
376188 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by P. Zika, 2007. Sources: Stace 1997.  
Type Notes
 
Collector
David Giblin 
Collection #
1291 
Other Collectors
Phil Green, Megan Jensen, Peter Dunwiddie, Ted Thomas 
Date Collected
20 Sep 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. Turn Island. Large island 0.25 miles off the east shore of San Juan Island. 
Elevation
 
Coordinates
48° 31.97' N, 122° 58.22' W 
Site Description
 
Specimen Notes
One prostrate shrub under Arbutus; northeast end of island. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
25. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Near Route 520 bridge, Montlake, Seattle.
Elev. 32 ft. 47° 38.7' N, 122° 18.1' W.
Cracks in concrete. Rare escape from cultivation, 1.5 meters tall shrub, divaricate branching, flowers solitary, 6.4-7.3 millimeters long; petals erect, red in center, pink apex, dark red base, erose; some petals blackish-red at base; hypanthium appressed hairy; filaments dark red, apex white; anthers white; 2-4 styles. Phenology: Flowers. Origin: Introduced.
WTU 367172
Peter F. Zika 22940    5 May 2007
25. Cotoneaster horizontalis Dcne.
Database ID
160527 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367172 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
22940 
Other Collectors
 
Date Collected
5 May 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Near Route 520 bridge, Montlake, Seattle. 
Elevation
32 ft. 
Coordinates
47° 38.7' N, 122° 18.1' W 
Site Description
Cracks in concrete. 
Specimen Notes
Rare escape from cultivation, 1.5 meters tall shrub, divaricate branching, flowers solitary, 6.4-7.3 millimeters long; petals erect, red in center, pink apex, dark red base, erose; some petals blackish-red at base; hypanthium appressed hairy; filaments dark red, apex white; anthers white; 2-4 styles. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
26. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lane County:
Near east Fork Willow Creek, The Nature Conservancy Willow Creek Natural Area, Eugene.
Elev. 410 ft. 44° 2' N, 123° 10' W.
Edge of partly shaded damp thicket, shrub and tree-invaded wet prairie remnant, with Fraxinus latifolia, Crataegus suksdorfii, C. monogyna, Rosa multiflora, Pyrus communis, Amelanchier alnifolia. Rare adventive shrub 1 meter tall, branching distichous, leaves deciduous, acute, shiny, slightly folded, petals erect, dark red to blackish-red at base, pink fringe; filaments very dark red; anthers white; hypanthium and sepal faces appressed hairy. Phenology: Flowers. Origin: Introduced.
WTU 367174
P. Zika 22943    6 May 2007
with E. Alverson
26. Cotoneaster horizontalis Dcne.
Database ID
160529 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367174 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. Zika 
Collection #
22943 
Other Collectors
E. Alverson 
Date Collected
6 May 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
Near east Fork Willow Creek, The Nature Conservancy Willow Creek Natural Area, Eugene. 
Elevation
410 ft. 
Coordinates
44° 2' N, 123° 10' W 
Site Description
Edge of partly shaded damp thicket, shrub and tree-invaded wet prairie remnant, with Fraxinus latifolia, Crataegus suksdorfii, C. monogyna, Rosa multiflora, Pyrus communis, Amelanchier alnifolia. 
Specimen Notes
Rare adventive shrub 1 meter tall, branching distichous, leaves deciduous, acute, shiny, slightly folded, petals erect, dark red to blackish-red at base, pink fringe; filaments very dark red; anthers white; hypanthium and sepal faces appressed hairy. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
27. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake.
Elev. 885 ft. 47° 30.7' N, 121° 52.2' W.
Sunny slope with Rubus ursinus, Rubus spectabilis, and Alnus rubra. Bird-sown adventive, no cultivated plants in the area. Spreading shrub 0.7 meters tall. Branches stiff and herringbone planar, deciduous, shiny, elliptical leaves turning red 7-10 x 5.5-8 millimeters. Red obovate fruit 5-8.5 x 4.7-7.7 millimeters. Phenology: Fruits. Origin: Introduced.
WTU 367791
Peter F. Zika 23697    5 Nov 2007
27. Cotoneaster horizontalis Dcne.
Database ID
163322 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367791 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23697 
Other Collectors
 
Date Collected
5 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake. 
Elevation
885 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Sunny slope with Rubus ursinus, Rubus spectabilis, and Alnus rubra. Bird-sown adventive, no cultivated plants in the area. 
Specimen Notes
Spreading shrub 0.7 meters tall. Branches stiff and herringbone planar, deciduous, shiny, elliptical leaves turning red 7-10 x 5.5-8 millimeters. Red obovate fruit 5-8.5 x 4.7-7.7 millimeters. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
28. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Island County:
East side of Route 525 near Greentree Drive. 2 air kilometers southeast of Lake Hancock, Greenbank, Whidbey Island.
Elev. 164 ft. 48° 5.6' N, 122° 34.2' W.
Edge of second-growth Pseudotsuga menziesii forest, with Pteridium, Vaccinium parvifolium, Rubus ursinus. Bird-sown shrub on steep north-facing slope, leaves turn red, deciduous, shiny, 9-17 x 5-10 millimeters wide; fruit red, shiny, obovate, 6-8 x 6-7 millimeters wide; (2) 3 sd/frt. Phenology: Fruits. Origin: Introduced.
WTU 367903
Peter F. Zika 23779    7 Dec 2007
28. Cotoneaster horizontalis Dcne.
Database ID
163347 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367903 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23779 
Other Collectors
 
Date Collected
7 Dec 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Island 
Locality
East side of Route 525 near Greentree Drive. 2 air kilometers southeast of Lake Hancock, Greenbank, Whidbey Island. 
Elevation
164 ft. 
Coordinates
48° 5.6' N, 122° 34.2' W 
Site Description
Edge of second-growth Pseudotsuga menziesii forest, with Pteridium, Vaccinium parvifolium, Rubus ursinus. 
Specimen Notes
Bird-sown shrub on steep north-facing slope, leaves turn red, deciduous, shiny, 9-17 x 5-10 millimeters wide; fruit red, shiny, obovate, 6-8 x 6-7 millimeters wide; (2) 3 sd/frt. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
29. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake.
Elev. 885 ft. 47° 30.7' N, 121° 52.2' W.
Sunny slope just above mowed margin of freeway, with Rubus armeniacus, R. ursinus, Cytisus scoparius, Alnus rubra. Sprawling shrub 1.5 meters tall, branches stiff and herringbone-planar, deciduous leaves turning red shiny, elliptic, 8-11 x 6.5-7.5 millimeters wide (rarely 6-13 x 4-9.5 millimeters wide); 1-3 frt/infr; fruit red, shiny, obovate to broadly so, 6-8 x 4.6-7.4 millimeters wide wide, 2-3 sd/frt; seed 3.2-4.5 x 2-3.2 millimeters wide. Bird sown adventive. No cultivated plants in area. Phenology: Fruits. Origin: Introduced.
WTU 367915
Peter F. Zika 23698    5 Nov 2007
29. Cotoneaster horizontalis Dcne.
Database ID
163356 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367915 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23698 
Other Collectors
 
Date Collected
5 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake. 
Elevation
885 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Sunny slope just above mowed margin of freeway, with Rubus armeniacus, R. ursinus, Cytisus scoparius, Alnus rubra. 
Specimen Notes
Sprawling shrub 1.5 meters tall, branches stiff and herringbone-planar, deciduous leaves turning red shiny, elliptic, 8-11 x 6.5-7.5 millimeters wide (rarely 6-13 x 4-9.5 millimeters wide); 1-3 frt/infr; fruit red, shiny, obovate to broadly so, 6-8 x 4.6-7.4 millimeters wide wide, 2-3 sd/frt; seed 3.2-4.5 x 2-3.2 millimeters wide. Bird sown adventive. No cultivated plants in area. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
30. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
Near Route 520 bridge, Montlake, Seattle.
Elev. 32 ft. 47° 38.7' N, 122° 18.1' W.
Cracks in concrete. Rare escape from cultivation, 1.5 meters tall shrub, divaricate branching, leaves elliptic, shiny, flat, 8-11 x 6.5-7.5 millimeters wide; fruits red, shiny, obovate to broadly obovate, 6-8 x 4.6-7.4 millimeters wide; 1-3 fruits/infructescence; 2-3 seeds/fruit; seed 3.2-4.5 x 2-3.2 millimeters wide. (=coll. #22940). Phenology: Fruits. Origin: Introduced.
WTU 368315
Peter F. Zika 23699    5 Nov 2007
30. Cotoneaster horizontalis Dcne.
Database ID
165894 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368315 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23699 
Other Collectors
 
Date Collected
5 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
Near Route 520 bridge, Montlake, Seattle. 
Elevation
32 ft. 
Coordinates
47° 38.7' N, 122° 18.1' W 
Site Description
Cracks in concrete. 
Specimen Notes
Rare escape from cultivation, 1.5 meters tall shrub, divaricate branching, leaves elliptic, shiny, flat, 8-11 x 6.5-7.5 millimeters wide; fruits red, shiny, obovate to broadly obovate, 6-8 x 4.6-7.4 millimeters wide; 1-3 fruits/infructescence; 2-3 seeds/fruit; seed 3.2-4.5 x 2-3.2 millimeters wide. (=coll. #22940). 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
31. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Clallam County:
Near milepost 272, north side of Route 101, near Deerhawk Drive.
Elev. 131 ft. 48° 1.7' N, 122° 59.5' W.
Partly shaded thickets, with Pseudotsuga menziesii, Gaultheria shallon, Rubus ursinus, forest edge. 3 adventive shrubs, to 1 meter tall, branching planar, leaves deciduous, shiny, turning red; fruit red, 5.8-8.5 x 5.5-7.7 millimeters wide, obovate; 3-4 seeds/fruit; seed 3.4-4.2 x 2.6-3.1 millimeters wide. Phenology: Fruits. Origin: Introduced.
WTU 368590
P. F. Zika 23726    7 Nov 2007
with F. Weinmann
31. Cotoneaster horizontalis Dcne.
Database ID
166046 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368590 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
23726 
Other Collectors
F. Weinmann 
Date Collected
7 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Clallam 
Locality
Near milepost 272, north side of Route 101, near Deerhawk Drive. 
Elevation
131 ft. 
Coordinates
48° 1.7' N, 122° 59.5' W 
Site Description
Partly shaded thickets, with Pseudotsuga menziesii, Gaultheria shallon, Rubus ursinus, forest edge. 
Specimen Notes
3 adventive shrubs, to 1 meter tall, branching planar, leaves deciduous, shiny, turning red; fruit red, 5.8-8.5 x 5.5-7.7 millimeters wide, obovate; 3-4 seeds/fruit; seed 3.4-4.2 x 2.6-3.1 millimeters wide. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
32. Cotoneaster horizontalis Dcne.
Canada, British Columbia
Near Exit 5 on Route 1, near junction of Westport Road and Northwood Drive, above the north shore of English Bay.
Elev. 574 ft. 49° 21.1' N, 123° 15.1' W.
Thickets on south-facing granite ledges overgrown with Rubus armeniacus, Rubus ursinus, Alnus rubra, Buddleja, Arbutus menziesii. Adventive deciduous shrubs 0.7 meter tall, leaves turn red, 6-11.2 x 4.6-8.2 millimeters wide; 1 fruit/inflorescence; fruit red, obovoid to broadly obovoid, 7.4-7.9 x 6-7.2 millimeters wide; 3 seeds/fruit; seed 3.1-4.2 x 2.3-3.2 millimeters wide. Phenology: Fruits. Origin: Introduced.
WTU 368805
P. F. Zika 23757    13 Nov 2007
with Frank Lomer
32. Cotoneaster horizontalis Dcne.
Database ID
166803 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
368805 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
23757 
Other Collectors
Frank Lomer 
Date Collected
13 Nov 2007 
Verbatim Date
 
Country
Canada 
State or Province
British Columbia 
County
 
Locality
Near Exit 5 on Route 1, near junction of Westport Road and Northwood Drive, above the north shore of English Bay. 
Elevation
574 ft. 
Coordinates
49° 21.1' N, 123° 15.1' W 
Site Description
Thickets on south-facing granite ledges overgrown with Rubus armeniacus, Rubus ursinus, Alnus rubra, Buddleja, Arbutus menziesii. 
Specimen Notes
Adventive deciduous shrubs 0.7 meter tall, leaves turn red, 6-11.2 x 4.6-8.2 millimeters wide; 1 fruit/inflorescence; fruit red, obovoid to broadly obovoid, 7.4-7.9 x 6-7.2 millimeters wide; 3 seeds/fruit; seed 3.1-4.2 x 2.3-3.2 millimeters wide. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
33. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
East Sucia #7.
48.76398° N, 122.88579° W. Coordinate Source: GPS.
The largest island in the chain. Forested with Arbutus, Juniperus, Pseudotsuga, with shrub understory. Height of 50 feet or so. 1 shrub under Juniperus at west end of island. Phenology: Vegetative. Origin: Introduced.
WTU 393290
Megan A. Jensen 574    25 Apr 2008
33. Cotoneaster horizontalis Dcne.
Database ID
167743 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
393290 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by David Giblin, 20 2008.  
Type Notes
 
Collector
Megan A. Jensen 
Collection #
574 
Other Collectors
 
Date Collected
25 Apr 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
East Sucia #7. 
Elevation
 
Coordinates
48.76398° N, 122.88579° W 
Site Description
The largest island in the chain. Forested with Arbutus, Juniperus, Pseudotsuga, with shrub understory. Height of 50 feet or so. 
Specimen Notes
1 shrub under Juniperus at west end of island. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
34. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lane County:
Near East Fork Willow Creek, The Nature Conservancy Willow Creek Natural Area, Eugene.
Elev. 393 ft. 44° 2.1' N, 123° 10.1' W.
Shrub and tree-invaded wet prairie remnant, with Fraxinus latifolia, Crataegus suksdorfii, Crataegus monogyna, Rosa multiflora, Pyrus communis, Amelanchier alnifolia. Spreading shrub 0.5 meter tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 6-8.5 x 5.5-7.5 millimeters wide; fruit solitary, 6.5 x 4.5-4.7 millimeters wide, red, obconic-obovate; bird-sown adventive, rare in damp thickets. Phenology: Vegetative. Origin: Introduced.
WTU 367651
P. Zika 23666    22 Oct 2007
with E. Alverson
34. Cotoneaster horizontalis Dcne.
Database ID
167888 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367651 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. Zika 
Collection #
23666 
Other Collectors
E. Alverson 
Date Collected
22 Oct 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
Near East Fork Willow Creek, The Nature Conservancy Willow Creek Natural Area, Eugene. 
Elevation
393 ft. 
Coordinates
44° 2.1' N, 123° 10.1' W 
Site Description
Shrub and tree-invaded wet prairie remnant, with Fraxinus latifolia, Crataegus suksdorfii, Crataegus monogyna, Rosa multiflora, Pyrus communis, Amelanchier alnifolia. 
Specimen Notes
Spreading shrub 0.5 meter tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 6-8.5 x 5.5-7.5 millimeters wide; fruit solitary, 6.5 x 4.5-4.7 millimeters wide, red, obconic-obovate; bird-sown adventive, rare in damp thickets. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
35. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake.
Elev. 885 ft. 47° 30.7' N, 121° 52.2' W.
Sunny slope above freeway. Spreading shrub 0.7m tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 7-10 x 5.5-8 mm w; 1-3 frt/infr;fruit 5-8.5 x 4.7-7.7 mm w, red, obovate to broadly obovate 2-3 (4) sd/frt; seed 2.8-4.6 x 2.2-3.4 mm w; bird-sown adventive (no cultivated plants in area), with Rubus ursinus, R. spectabilis, Alnus rubra. Phenology: Fruits. Origin: Introduced.
WTU 367791
Peter F. Zika 23697    5 Nov 2007
35. Cotoneaster horizontalis Dcne.
Database ID
168278 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367791 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23697 
Other Collectors
 
Date Collected
5 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
On slope above west bound Interstate 90, near truck scales, 0.2 air miles northwest of Echo Lake. 
Elevation
885 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Sunny slope above freeway. 
Specimen Notes
Spreading shrub 0.7m tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 7-10 x 5.5-8 mm w; 1-3 frt/infr;fruit 5-8.5 x 4.7-7.7 mm w, red, obovate to broadly obovate 2-3 (4) sd/frt; seed 2.8-4.6 x 2.2-3.4 mm w; bird-sown adventive (no cultivated plants in area), with Rubus ursinus, R. spectabilis, Alnus rubra. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
36. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake.
Elev. 270 ft. 47° 30.7' N, 121° 52.2' W.
Sunny slope above freeway, with Rubus ursinus, Rubus spectabilis, Alnus rubra. Bird-sown adventive (no cultivated plants in area). Spreading shrub 0.7 m tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 7-10 x 5.5-8 mm w; 1-3 frt/infr; fruit 5-8.5 x 4.7-7.7 mm w, red, obovate to broadly obovate, 2-3(4) sd/frt; seed 2.8-4.6 x 2.2-3.4 mm w. Phenology: Fruits. Origin: Introduced.
WTU 367791
P. F. Zika 23697    5 Nov 2007
36. Cotoneaster horizontalis Dcne.
Database ID
168290 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
367791 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
P. F. Zika 
Collection #
23697 
Other Collectors
 
Date Collected
5 Nov 2007 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake. 
Elevation
270 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Sunny slope above freeway, with Rubus ursinus, Rubus spectabilis, Alnus rubra. 
Specimen Notes
Bird-sown adventive (no cultivated plants in area). Spreading shrub 0.7 m tall, branches stiff and herringbone-planar, deciduous leaves turning red, shiny, mostly elliptic, 7-10 x 5.5-8 mm w; 1-3 frt/infr; fruit 5-8.5 x 4.7-7.7 mm w, red, obovate to broadly obovate, 2-3(4) sd/frt; seed 2.8-4.6 x 2.2-3.4 mm w. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
37. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake.
Elev. 885 ft. 47° 30.7' N, 121° 52.2' W.
Bird-sown adventive (no cultivated plants in area), sunny slope above freeway, with Rubus ursinus, R. spectabilis, Alnus rubra. Spreading shrub 0.7 meters tall, branches stiff and herringbone-planar, leaves shiny; 1-2 flr/infl; flowers 6.5-6.9 mm long; petals red to dark red, apex pink, base daark red, some purplish-black at base in bud, (2)3 styles; 10(12) stamens. Phenology: Fruits. Origin: Introduced.
WTU 372303
Peter F. Zika 23830    25 May 2008
37. Cotoneaster horizontalis Dcne.
Database ID
170261 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
372303 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by Peter F. Zika.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23830 
Other Collectors
 
Date Collected
25 May 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake. 
Elevation
885 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Bird-sown adventive (no cultivated plants in area), sunny slope above freeway, with Rubus ursinus, R. spectabilis, Alnus rubra. 
Specimen Notes
Spreading shrub 0.7 meters tall, branches stiff and herringbone-planar, leaves shiny; 1-2 flr/infl; flowers 6.5-6.9 mm long; petals red to dark red, apex pink, base daark red, some purplish-black at base in bud, (2)3 styles; 10(12) stamens. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
38. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Benton County:
Calloway Drive, 0.2 mile west of Arboretum Road. Ca. 2.5 air miles north of Lewisburg.
Elev. 380 ft. UTM Zone 10, 481925E, 4945699N. Datum: NAD 83.
Shrubby edge of Douglas-fir forest at top of road cut bank. With Symphoricarpos albus, Corylus cornuta, Rubus ursinus, Satureja douglasii. Low shrub, 0.5 meter tall. Fruit red, obovoid. Reproducing- 1 large plant with 5 smaller plants within one meter. Phenology: Fruits. Origin: Introduced.
WTU 373542
R.E. Brainerd 1324    15 Nov 2008
38. Cotoneaster horizontalis Dcne.
Database ID
171316 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
373542 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
R.E. Brainerd 
Collection #
1324 
Other Collectors
 
Date Collected
15 Nov 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
Calloway Drive, 0.2 mile west of Arboretum Road. Ca. 2.5 air miles north of Lewisburg. 
Elevation
380 ft. 
Coordinates
UTM Zone 10, 481925E, 4945699N 
Site Description
Shrubby edge of Douglas-fir forest at top of road cut bank. With Symphoricarpos albus, Corylus cornuta, Rubus ursinus, Satureja douglasii. 
Specimen Notes
Low shrub, 0.5 meter tall. Fruit red, obovoid. Reproducing- 1 large plant with 5 smaller plants within one meter. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
39. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Curry County:
Hunter Creek drainage, 0.1 road mile east of Swinging Bridge Road.
Elev. 49 ft. 42° 21.5' N, 124° 23.1' W.
Steep south-facing unstable sunny slope, with Toxicodendron, 5 meters above Hunter Creek Road. Two adventive shrubs; fruit bright red, shiny, obovoid. Phenology: Fruits. Origin: Introduced.
WTU 374453
Peter F. Zika 24203    18 Oct 2008
with Veva Stansell
39. Cotoneaster horizontalis Dcne.
Database ID
172219 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
374453 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
24203 
Other Collectors
Veva Stansell 
Date Collected
18 Oct 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Curry 
Locality
Hunter Creek drainage, 0.1 road mile east of Swinging Bridge Road. 
Elevation
49 ft. 
Coordinates
42° 21.5' N, 124° 23.1' W 
Site Description
Steep south-facing unstable sunny slope, with Toxicodendron, 5 meters above Hunter Creek Road. 
Specimen Notes
Two adventive shrubs; fruit bright red, shiny, obovoid. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
40. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Curry County:
Hunter Creek drainage, 0.1 road mile east of Swinging Bridge Road.
Elev. 49 ft. 42° 21.5' N, 124° 23.1' W.
Steep south-facing unstable sunny slope, with Toxicodendron, 5 meters above Hunter Creek Road. Two adventive shrubs; fruit bright red, shiny, obovoid. Phenology: Fruits. Origin: Introduced.
WTU 374448
Peter F. Zika 24203    18 Oct 2008
with Veva Stansell
40. Cotoneaster horizontalis Dcne.
Database ID
172229 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
374448 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
24203 
Other Collectors
Veva Stansell 
Date Collected
18 Oct 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Curry 
Locality
Hunter Creek drainage, 0.1 road mile east of Swinging Bridge Road. 
Elevation
49 ft. 
Coordinates
42° 21.5' N, 124° 23.1' W 
Site Description
Steep south-facing unstable sunny slope, with Toxicodendron, 5 meters above Hunter Creek Road. 
Specimen Notes
Two adventive shrubs; fruit bright red, shiny, obovoid. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
41. Cotoneaster horizontalis Dcne.
U.S.A., Washington, King County:
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake.
Elev. 885 ft. 47° 30.7' N, 121° 52.2' W.
Bird-sown adventive (no cultivated plants in area), sunny slope just above mowed margin of freeway, with Rubus armeniacus, R. ursinus, Cytisus scoparius, Alnus rubra. Sprawling shrub 1.5 meters tall, branches stiff and herringbone-planar, deciduous shiny leaves; 1-2(3) flowers per inflorescence; flowers 6.5-6.8 millimeters long, petals erect, incurved, red to dark red, some purplish-black at base in bud; anthers white, filaments dark red, rarely purplish dark red at base; 10(11) stamens; 3(4) styles; copious nectar. Phenology: Flowers. Origin: Introduced.
WTU 374670
Peter F. Zika 23831    25 May 2008
41. Cotoneaster horizontalis Dcne.
Database ID
172976 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
374670 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
23831 
Other Collectors
 
Date Collected
25 May 2008 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
King 
Locality
West-bound I-90 near truck scales, height of land 0.2 air kilometers northwest of Echo Lake. 
Elevation
885 ft. 
Coordinates
47° 30.7' N, 121° 52.2' W 
Site Description
Bird-sown adventive (no cultivated plants in area), sunny slope just above mowed margin of freeway, with Rubus armeniacus, R. ursinus, Cytisus scoparius, Alnus rubra. 
Specimen Notes
Sprawling shrub 1.5 meters tall, branches stiff and herringbone-planar, deciduous shiny leaves; 1-2(3) flowers per inflorescence; flowers 6.5-6.8 millimeters long, petals erect, incurved, red to dark red, some purplish-black at base in bud; anthers white, filaments dark red, rarely purplish dark red at base; 10(11) stamens; 3(4) styles; copious nectar. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
42. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
San Juan Islands National Wildlife Refuge and Wilderness Area. East Sucia #7.
Elev. 50 ft. 48.76398° N, 122.88579° W.
The largest island in the chain. Forested with Arbutus, Pseudotsuga, with shrub understory. Densely forested with Juniperus. Height of 50 feet or so. Shiny leaves, disticous branching. Petals dark pink, erect. 0.7 meters tall. Not cultivated. One plant on north slope, shade of Juniperus. Phenology: Flowers. Origin: Introduced.
WTU 395094
Cheryl Lowe 09-57    29 May 2009
42. Cotoneaster horizontalis Dcne.
Database ID
173197 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
395094 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by P. F. Zika, 2009.  
Type Notes
 
Collector
Cheryl Lowe 
Collection #
09-57 
Other Collectors
 
Date Collected
29 May 2009 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
San Juan Islands National Wildlife Refuge and Wilderness Area. East Sucia #7. 
Elevation
50 ft. 
Coordinates
48.76398° N, 122.88579° W 
Site Description
The largest island in the chain. Forested with Arbutus, Pseudotsuga, with shrub understory. Densely forested with Juniperus. Height of 50 feet or so. 
Specimen Notes
Shiny leaves, disticous branching. Petals dark pink, erect. 0.7 meters tall. Not cultivated. One plant on north slope, shade of Juniperus. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
43. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Skagit County:
Vendovi Island. Bluffs on west side of island.
Elev. 20 m. 48.608981°, -122.608264°. Datum: WGS 84. Georeferenced by WTU Staff. Coordinate Source: Georeferenced.
Mix of open grassy meadows and Pseudotsuga menziesii groves. One low shrub next to trail in open woods. Phenology: Vegetative. Origin: Introduced.
WTU 403914; Barcode: WTU-V-012141
Peter W. Dunwiddie 2011-42    29 Apr 2011
with Tanner Harris, Ben Legler, James Duemmel, John Floberg
43. Cotoneaster horizontalis Dcne.
Database ID
179805 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403914 
Barcode
WTU-V-012141 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by David Giblin, 9 2011. Sources: Stace 1997.  
Type Notes
 
Collector
Peter W. Dunwiddie 
Collection #
2011-42 
Other Collectors
Tanner Harris, Ben Legler, James Duemmel, John Floberg 
Date Collected
29 Apr 2011 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Vendovi Island. Bluffs on west side of island. 
Elevation
20 m. 
Coordinates
48.608981°, -122.608264° 
Site Description
Mix of open grassy meadows and Pseudotsuga menziesii groves. 
Specimen Notes
One low shrub next to trail in open woods. 
Phenology
Vegetative 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
44. Cotoneaster horizontalis Dcne.
U.S.A., Washington, San Juan County:
0.75 air kilometers south of False Bay, San Juan Island, Puget Sound.
Elev. 49 ft. 48.476° N, 123.065° W.
In damp wind-pruned thickets, gentle west slope between limestone outcrops, meadow edge, partial shade, with Pseudotsuga, Rosa nutkana, Rubus ursinus, Pteridium, Holcus, Achillea, Carex aurea. Adventive shrubs 0.5-1.5 meters tall, leaves shiny, branching herringbone-planar, immature fruit turning red; uncommon. Phenology: Fruits. Origin: Introduced.
WTU 389144
Peter F. Zika 26120    1 Sep 2012
44. Cotoneaster horizontalis Dcne.
Database ID
185696 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
389144 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
26120 
Other Collectors
 
Date Collected
1 Sep 2012 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
San Juan 
Locality
0.75 air kilometers south of False Bay, San Juan Island, Puget Sound. 
Elevation
49 ft. 
Coordinates
48.476° N, 123.065° W 
Site Description
In damp wind-pruned thickets, gentle west slope between limestone outcrops, meadow edge, partial shade, with Pseudotsuga, Rosa nutkana, Rubus ursinus, Pteridium, Holcus, Achillea, Carex aurea. 
Specimen Notes
Adventive shrubs 0.5-1.5 meters tall, leaves shiny, branching herringbone-planar, immature fruit turning red; uncommon. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
45. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lane County:
East side of Rat Creek Road 0.5 road miles north of Dorena Reservoir.
Elev. 984 ft. 43° 47.4' N, 122° 55.08' W.
Partial shade of Pseudotsuga, damp slope with Fraxinus. Adventive shrub, 0.7 meters tall, stiff planar branching.¶Specimen used for illustration in Revision of Flora of the Pacific Northwest, WTU Herbarium, 2015. Phenology: Fruits. Origin: Introduced.
WTU 389666; Barcode: WTU-V-021956
Peter F. Zika 25951    4 Jul 2012
with Bruce Newhouse
45. Cotoneaster horizontalis Dcne.
Database ID
185990 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
389666 
Barcode
WTU-V-021956 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
25951 
Other Collectors
Bruce Newhouse 
Date Collected
4 Jul 2012 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lane 
Locality
East side of Rat Creek Road 0.5 road miles north of Dorena Reservoir. 
Elevation
984 ft. 
Coordinates
43° 47.4' N, 122° 55.08' W 
Site Description
Partial shade of Pseudotsuga, damp slope with Fraxinus. 
Specimen Notes
Adventive shrub, 0.7 meters tall, stiff planar branching.¶Specimen used for illustration in Revision of Flora of the Pacific Northwest, WTU Herbarium, 2015. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
46. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Multnomah County:
Sandy River drainage, Highway 30, 1.8 road miles south of Interstate 84, 14.8 air miles east of downtown Portland.
Elev. 175 ft. UTM Zone 10, 549304E, 5041160N. Datum: WGS 84.
Steep, cobbly roadside cutbank. Plants prostrate, cascading down cutbank. Phenology: Flowers. Origin: Introduced.
WTU 396538
Nick Otting 3370    20 May 2012
46. Cotoneaster horizontalis Dcne.
Database ID
189785 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
396538 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by Peter Zika.  
Type Notes
 
Collector
Nick Otting 
Collection #
3370 
Other Collectors
 
Date Collected
20 May 2012 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Sandy River drainage, Highway 30, 1.8 road miles south of Interstate 84, 14.8 air miles east of downtown Portland. 
Elevation
175 ft. 
Coordinates
UTM Zone 10, 549304E, 5041160N 
Site Description
Steep, cobbly roadside cutbank. 
Specimen Notes
Plants prostrate, cascading down cutbank. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
47. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Multnomah County:
Willamette Valley, Portland, Creston City Park.
Elev. 175 ft. UTM Zone 10, 530043E, 5038192N. Datum: WGS 84.
Weedy slope adjacent to abandoned tennis court. With Crataegus monogyna, Ilex aquifolium, Pseudotsuga menziesii, Aesculus hippocastanum. Apparently naturalized. Sprawling shrub 1 meter tall. Phenology: Flowers. Origin: Introduced.
WTU 396531
Nick Otting 2460    16 May 2010
47. Cotoneaster horizontalis Dcne.
Database ID
189792 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
396531 
Barcode
 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Nick Otting 
Collection #
2460 
Other Collectors
 
Date Collected
16 May 2010 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Multnomah 
Locality
Willamette Valley, Portland, Creston City Park. 
Elevation
175 ft. 
Coordinates
UTM Zone 10, 530043E, 5038192N 
Site Description
Weedy slope adjacent to abandoned tennis court. With Crataegus monogyna, Ilex aquifolium, Pseudotsuga menziesii, Aesculus hippocastanum. 
Specimen Notes
Apparently naturalized. Sprawling shrub 1 meter tall. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
No 

Rosaceae
48. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Snohomish County:
Tulare Beach.
48.101763°, -122.343202°. Datum: WGS 84. Coordinate uncertainty: 650 meters. Georeferenced by Maria Yousoufian. Coordinate Source: GeoLocate.
Landscape shrub. Phenology: Fruits. Origin: Introduced.
WTU 402944; Barcode: WTU-V-011186
Clayton Haberman s.n.    19 Mar 2005
48. Cotoneaster horizontalis Dcne.
Database ID
2490050 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
402944 
Barcode
WTU-V-011186 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Clayton Haberman 
Collection #
s.n. 
Other Collectors
 
Date Collected
19 Mar 2005 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Snohomish 
Locality
Tulare Beach. 
Elevation
 
Coordinates
48.101763°, -122.343202° 
Site Description
 
Specimen Notes
Landscape shrub. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
49. Cotoneaster horizontalis Dcne.
U.S.A., Alaska
Northwest of downtown Ketchikan on Revillagigedo Island.
55.37096° N, 131.72011° W. Coordinate Source: Specimen Label.
Near paved hotel parking lot, growing from beneath concrete blocks. One plant observed. Does not appear to be planted. Phenology: Flowers. Origin: Introduced.
WTU 403470; Barcode: WTU-V-011056
Jeff Walker 757    12 Jun 2015
49. Cotoneaster horizontalis Dcne.
Database ID
2500404 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
403470 
Barcode
WTU-V-011056 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.
    Annotated by Jeff Walker.  
Type Notes
 
Collector
Jeff Walker 
Collection #
757 
Other Collectors
 
Date Collected
12 Jun 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Alaska 
County
 
Locality
Northwest of downtown Ketchikan on Revillagigedo Island. 
Elevation
 
Coordinates
55.37096° N, 131.72011° W 
Site Description
Near paved hotel parking lot, growing from beneath concrete blocks. 
Specimen Notes
One plant observed. Does not appear to be planted. 
Phenology
Flowers 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
50. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Lincoln County:
Near Cape Foulweather.
Elev. 130 m. 44.76° N, 124.07° W. Coordinate Source: Specimen Label.
Steep rocky bluff by the sea, with Gaultheria shallon, Allium cernuum, Sedum spathulifolium, Anthoxanthum, Leucanthemum. Shrubs 15 centimeters tall, but pruned by exposure to wind and grazers. Phenology: Fruits. Origin: Introduced.
WTU 404292; Barcode: WTU-V-012286
Peter F. Zika 27040    8 Jun 2015
50. Cotoneaster horizontalis Dcne.
Database ID
2500747 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
404292 
Barcode
WTU-V-012286 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
27040 
Other Collectors
 
Date Collected
8 Jun 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Lincoln 
Locality
Near Cape Foulweather. 
Elevation
130 m. 
Coordinates
44.76° N, 124.07° W 
Site Description
Steep rocky bluff by the sea, with Gaultheria shallon, Allium cernuum, Sedum spathulifolium, Anthoxanthum, Leucanthemum. 
Specimen Notes
Shrubs 15 centimeters tall, but pruned by exposure to wind and grazers. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
51. Cotoneaster horizontalis Dcne.
U.S.A., Washington, Skagit County:
Rosario Drive, near junction with Cougar Gap Road, 2.8 air kilometers west-southwest of Roger Hill, Fidalgo Island.
Elev. 90 m. 48.425° N, 122.665° W. Coordinate Source: Specimen Label.
In thickets, full sun to partial shade, with Gaultheria shallon, Cytisus scoparius, Rosa nutkana, Vaccinium parvifolium, Pseudotsuga menziesii. Deciduous shrubs 0.3-1 meter tall, branching planar, fruits orange-red to bright red, obovate to broadly obovate, 6-8 x 6-8 millimeters, (2)3 seed/fruit; naturalized, occasional. Phenology: Fruits. Origin: Introduced.
WTU 405872; Barcode: WTU-V-18162
Peter F. Zika 27582    17 Oct 2015
51. Cotoneaster horizontalis Dcne.
Database ID
3055642 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
405872 
Barcode
WTU-V-18162 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
Peter F. Zika 
Collection #
27582 
Other Collectors
 
Date Collected
17 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Washington 
County
Skagit 
Locality
Rosario Drive, near junction with Cougar Gap Road, 2.8 air kilometers west-southwest of Roger Hill, Fidalgo Island. 
Elevation
90 m. 
Coordinates
48.425° N, 122.665° W 
Site Description
In thickets, full sun to partial shade, with Gaultheria shallon, Cytisus scoparius, Rosa nutkana, Vaccinium parvifolium, Pseudotsuga menziesii. 
Specimen Notes
Deciduous shrubs 0.3-1 meter tall, branching planar, fruits orange-red to bright red, obovate to broadly obovate, 6-8 x 6-8 millimeters, (2)3 seed/fruit; naturalized, occasional. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
52. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Benton County:
McDonald Forest; spur road between Forest Road 610 and NW Michelle Drive; 0.4 miles southeast of Lewisburg Saddle.
Elev. 905 ft. 44.63227° N, 123.29169° W. Coordinate Source: Specimen Label.
Road pullout at edge of Douglas-fir forest; full sun.¶Associated taxa: Quercus garryana, Rubus bifrons, Elymus glaucus, Agrostis, Rubus ursinus, Brachypodium sylvaticum. Spreading shrubs; fruits red, obglobose. Reproducing with several individuals 0.2-1.5 meters tall, forming a dense patch 2 meters in diameter. Phenology: Fruits. Origin: Introduced.
WTU 416811; Barcode: WTU-V-036442
R.E. Brainerd 2481    2 Dec 2016
52. Cotoneaster horizontalis Dcne.
Database ID
3187693 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
416811 
Barcode
WTU-V-036442 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
R.E. Brainerd 
Collection #
2481 
Other Collectors
 
Date Collected
2 Dec 2016 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
McDonald Forest; spur road between Forest Road 610 and NW Michelle Drive; 0.4 miles southeast of Lewisburg Saddle. 
Elevation
905 ft. 
Coordinates
44.63227° N, 123.29169° W 
Site Description
Road pullout at edge of Douglas-fir forest; full sun.¶Associated taxa: Quercus garryana, Rubus bifrons, Elymus glaucus, Agrostis, Rubus ursinus, Brachypodium sylvaticum. 
Specimen Notes
Spreading shrubs; fruits red, obglobose. Reproducing with several individuals 0.2-1.5 meters tall, forming a dense patch 2 meters in diameter. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

Rosaceae
53. Cotoneaster horizontalis Dcne.
U.S.A., Oregon, Benton County:
Northwest Corvallis, Chip Ross Park, circa 200 meters east-northeast of the intersection of 29th Street and Bunting Drive.
Elev. 500 ft. 44.6046° N, 123.2854° W. Coordinate Source: Specimen Label.
Upland meadow, southerly aspect, full sun. ¶Associated taxa: Brachypodium sylvaticum, Schedonorus arundinaceus, Crataegus monogyna, Rubus ursinus, Symphyotrichum hallii. Shrub circa 75 centimeters tall; branching horizontal; fruits red, more or less spherical; leaves to 1 centimeter long. Phenology: Fruits. Origin: Introduced.
WTU 417168; Barcode: WTU-V-036804
R.E. Brainerd 2443    7 Oct 2015
53. Cotoneaster horizontalis Dcne.
Database ID
3194011 
Herbarium
WTU 
Collection
Vascular Plants 
Dataset
 
Accession
417168 
Barcode
WTU-V-036804 
Other Numbers
 
Family
Rosaceae 
Name on Specimen
Cotoneaster horizontalis Dcne. 
Accepted Name
Cotoneaster horizontalis Decne. 
Annotation History
1. Cotoneaster horizontalis Dcne.  
Type Notes
 
Collector
R.E. Brainerd 
Collection #
2443 
Other Collectors
 
Date Collected
7 Oct 2015 
Verbatim Date
 
Country
U.S.A. 
State or Province
Oregon 
County
Benton 
Locality
Northwest Corvallis, Chip Ross Park, circa 200 meters east-northeast of the intersection of 29th Street and Bunting Drive. 
Elevation
500 ft. 
Coordinates
44.6046° N, 123.2854° W 
Site Description
Upland meadow, southerly aspect, full sun. ¶Associated taxa: Brachypodium sylvaticum, Schedonorus arundinaceus, Crataegus monogyna, Rubus ursinus, Symphyotrichum hallii. 
Specimen Notes
Shrub circa 75 centimeters tall; branching horizontal; fruits red, more or less spherical; leaves to 1 centimeter long. 
Phenology
Fruits 
Origin
Introduced 
Cultivated?
No 
Imaged?
Yes 

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Database Field Descriptions:
Database ID
Each of our backend databases assigns a unique and persistent integer ID to each specimen record. A GUID (globally unique identifier) can be formed from this by combining it with the herbarium and collection acronyms (example: WTU-VP-12733).
Herbarium
Every herbarium is referred to by a unique acronym. Ours is WTU, which stands for Washington Territorial University. Our database also includes some specimens housed at NOCA (North Cascades National Park Herbarium) and MORA (Mount Rainier National Park Herbarium). For a complete listing of herbarium acronyms, see Index Herbariorum.
Collection
WTU's specimens are physically housed in separate collections according to taxonomic groups: Vascular Plants, Bryophytes, Algae, Lichens, and Fungi.
Dataset
Some specimens are grouped into "Datasets," representing such things as incorporated herbaria or major collecting projects.
Accession
Each of WTU's Vascular Plant specimens is assigned an accession number. Our other collections lack accession numbers (see Barcode instead). Ideally, each specimen would have a unique accession number, but this fails in practice. Some accession numbers include "JWT" after the number; these indicate specimens originating from the herbarium of J. William Thompson that were integrated into WTU's collections but not re-accessioned with WTU numbers. Accession numbers followed by an "A", "B", or other single letter represent sheets with multiple collections mounted on them, all using the same accession number.
Barcode
Our Bryophyte, Algae, Lichen, Fungi, and some Vascular Plant specimens are assigned pre-printed barcode stickers. These follow the format "WTU-C-######", where C represents a code for the collection (one of: V, B, A, L, F) and ###### represents a zero-padded, six-digit number.
Other Numbers
Specimens collected from North Cascades and Mount Rainier National Parks are assigned National Park Service accession and catalog numbers. These numbers are listed here.
Family
The scientific name of the family. Our database generally uses AGPIII and other current sources for vascular plant family names. However, our physical Vascular Plant collection is organized by the older Englerian sequence.
Accepted Name
For Vascular Plants, this gives the accepted name by which the specimen is currently known. The accepted name is derived by looking up the most recent annotation name in a synonymy table and finding its corresponding accepted name.
Annotation History
The sequence of annotations and scientific names given on the physical specimen is listed here, in order from the first to most recent. We treat the name on the original label as the first annotation.
Type Notes
If this is a type specimen, then information about its type status (holotype, isotype, etc.) and the name(s) for which it is a type is provided here.
Collector
The person who collected this specimen, as given on the label, and whose name is associated with the collection number on the label. If no collector name is given, we enter "unknown" into this field.
Collection #
A unique number assigned to the specimen by the collector. Different collectors use different numbering schemes; these may include the addition of prefixes (such as their initials or the year) or suffixes (such as an A or B). In the database, any prefixes and suffixes are included in the Collector's Number field exactly as they appear on the specimen label. When no collector number is given, we type "s.n." in this field.
Other Collectors
Other collectors that are listed on the label along with the primary collector, but whose collection number was not assigned to this specimen.
Date Collected
The date on which the specimen was collected, split up between day, month, and year in the database. Months are stored as nubmers (1-12) but displayed as three-letter abbreviations. Years are alway 4-digits long. Occasionally the label may give a range of dates. In such cases, the first date in the range is used as the collection date, and the entire collection date is entered into the Verbatim Date field as it appears on the label. If no date is given, then the date fields are left blank and a note is made in the Verbatim Date field.
Verbatim Date
The literal date string as displayed on the label; only used for dates that cannot be represented by a single day, month, and year.
Country
Name of the country from which the specimen was collected. Specimens from the United States of America are entered as "U.S.A."
State or Province
Name of the state or province from which the specimen was collected, if given on the label. U.S. states are spelled out in full.
County
Name of the county, municipality, borough, parish, or equivalent political unit from which the specimen was collected, if given on the label. The designation (such as "county") is not included in the field value.
Locality
A text description of the location where the specimen was collected, as given on the specimen label. May include national park, national forest, and other land use designations. Older collections often have short and imprecise locality data. Detailed locality data for rare species (threatened, endangered, sensitive, watch, ...) is included in our database but omitted from the search results.
Elevation
Elevations may be given either in feet or meters, and may include a minimum and maximum elevation, representing a range.
Coordinates
May include TRS/PLSS (township, range, section, quarter, etc.), latitude/longitude, and UTM. Coordinates for arare species are included in our database but omittedfrom the search results.
Site Description
This field includes all label information characterizing the site, such habitat, vegetation zone/association, substrate, slope, moisture, associated species, and so on - as the information appears on the specimen label.
Specimen Notes
Includes any characteristics pertaining to the plant specimen itself, such as flower color, fruit length, and plant height, along with information about the species, such as abundance and the precise location and micro-habitat where collected. Also includes any notes or text on the specimen that does not better fit into another field.
Phenology
Specifies the sexual maturity/condition of the specimen, such as flowering, fruiting, cone-bearing, spore-bearing, fertile, or sterile. Phenology is generally not given on the label; instead the person entering the record examines the specimen and selects the appropriate value.
Origin
Specifies whether the specimen is native or introduced to the state or country where it was collected. Origin data is rarely found on the specimen label; instead, it is entered during data entry either from a lookup table or from the date entry personnel's own knowledge. Origin data should be considered supplemental information, and should not be relied on as authoritative.
Cultivated
A Yes/No flag indicating if this is a cultivated specimen. Cultivated specimens generally do not represent valid distribution records and should be excluded from range maps or other geographic analyses.


Disclaimer:

WTU makes a reasonable effort to prevent and correct data entry errors; however, we cannot guarantee that our database is free from typos, misidentifications, or inaccurate label data. Please use the information at your own discretion. Error corrections and comments can be sent to Ben Legler or David Giblin.