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Research - Rennie Pass 2005


2004: RENNIE PASS, NORTH CASCADES NATIONAL PARK

Rennie Pass, located in a remote area in the Lake Chelan National Recreation Area in the far southeastern corner of the North Cascades National Park Complex, was visited in late July. WTU's Sarah Gage and NOCA's Steve Hahn led a group of 8 volunteers on a 4 day, 3 night backpacking trip up the arduous 6.6 mile long Rennie Pass Trail, to collect in the extensive and beautiful subalpine basins and high ridgelines around the pass.

A total of 193 collections were made, comprising 425 individual specimens and 153 distinct taxa. 28 of those taxa were new park records for the NOCA park herbarium, a full 18% of the taxa collected on the trip.

In addition to Sarah Gage and Steve Hahn, participating NOCA staff included Dorothy Wallace-Senft.

Participating volunteers included Laura Potash, Maria Gerace, Rich Gwodz, and Peter Zika, with Student Conservation Associates Lindsey Hamilton and Emily Sloane. Two additional SCA volunteers helped haul presses out at trip's end.


RESULTS
# of Collections  193
# of Specimens  425
# of Taxa  153
 
Group photo at end of trip.
Photo: Steve Hahn
View from near Rennie Pass.
Photo: Steve Hahn
Taking a break on slopes near Rennie Pass.
Photo: Steve Hahn
Traversing talus slope.
Photo: Steve Hahn
Collecting at cliff base near Rennie Pass.
Photo: Steve Hahn
Descending the ridge.
Photo: Steve Hahn
Descending the ridge.
Photo: Steve Hahn
View from near Rennie Pass.
Photo: Steve Hahn
Steve Hahn on ridge, vicinity of Rennie Pass.
Photo: Steve Hahn
View of subalpine meadows, vicinity of Rennie Pass.
Photo: Steve Hahn
Collecting in vicinity of Rennie Pass.
Photo: Steve Hahn
Taking a break, vicinity of Rennie Pass.
Photo: Steve Hahn
Loaded up with specimens for the hike out.
Photo: Steve Hahn

New Records for NOCA Park Complex: The following taxa were not previously documented from within the park complex with a voucher specimen at the NOCA herbarium.

Agoseris glauca var. dasycephala
Anemone multifida var. saxicola
Anemone parviflora
Arabis divaricarpa
Cerastium beeringianum
Draba lonchocarpa var. lonchocarpa
Draba lonchocarpa var. thompsonii
Draba paysonii var. treleasii
Dryas octopetala
Elymus elymoides ssp. elymoides
Erigeron compositus
Eriogonum ovalifolium var. nivale
Lupinus wyethii
Luzula multiflora ssp. frigida
Minuartia nuttallii ssp. nuttallii
Pedicularis bracteosa var. bracteosa
Piptatherum exiguum
Potentilla uniflora
Ranunculus eschscholtzii var. eschscholtzii
Ranunculus karelinii
Rhododendron albiflorum
Taraxacum officinale ssp. ceratophorum
Trollius laxus ssp. albiflorus
Vaccinium scoparium