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Research and Collections Herbarium







WTU Image Collection:
Plants and Lichens of Washington

Photographs, distribution maps, and descriptions for Washington's vascular plants and lichens. Also includes several identification key. 

Washington Flora checklist
A working checklist of the vascular plants of Washington State.

PNW Herbaria PortalNew
A search portal for Pacific Northwest flora. The portal provides access to collections held by herbaria throughout the region.

Washington Weed MappingNew
An interactive mapping tool that displays ranges of weeds and invasive plants in the state. This tool can also be used to map native species.





Washington Carex Atlas
Interactive specimen dot maps for all Carex species known from Washington State.
(See also County-level Carex distribution maps for Washington State, based on voucher specimens from 7 herbaria in Washington and Oregon compiled by Fred Weinmann.)

WTU's Distribution Maps for Washington State
These county-level maps cover all of Washington's vascular plant species, and are based on data from WTU's specimen database. 

County-level species lists for Washington State
Generate custom species lists for Washington's vascular plants, covering one or more counties. Based on WTU's specimen database. 









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University of Washington