Images, species descriptions, range maps and bloom period for more than 850 common wildflowers, shrubs and vines that occur in Washington.
How tiny fossilized plant particles in Costa Rica can be used to reconstruct past landscapes.
We’re revising Flora of the Pacific Northwest, published in 1973, with updated information for over 5,300 varieties of vascular plants.
Developing “barcodes” with fungi DNA helps easily identify species.
Researchers sink their teeth into this tricky evolutionary question.
By extracting phytoliths from once-living plants, scientists were able to uncover a story of vegetation change in response to climate.
Plants were an integral part of the Coast Salish diets prior to Euro-American colonization but also played central roles in social systems.
30 million years ago, the world lacked its grass-dominated environments, but 70 million years ago, grasses had not evolved—or so we think.
The WTU Herbarium's total holdings number more than 650,000 specimens of vascular and nonvascular plants, fungi, lichens and marine algae.
A map of Washington state showing all vascular plant specimen localities in the Herbarium WTU collections database.
Explore the complete checklist of the vascular plants of Washington state.