Rare Plants Information Available from the Washington Natural Heritage Program

Washington Rare Vascular Plant Species with Ranks	A list of rare vascular plant species that are tracked by the Washington Natural Heritage Program, including ranks, status, and links to online descriptions.
Rare Plant Lists by County	A list of the rare plant species known to occur in each county of Washington State. Ranks, status, and links to online descriptions are included.
Washington Rare Plant List Changes Since 1997	A list of changes made to Endangered, Threatened & Sensitive Vascular Plants of Washington that was published in August 1997.
Updated Taxonomy and Nomenclature References	A list of references for rare plant species names not in our publication Vascular Plants of the Pacific Northwest.
Field Guide to the Rare Plants of Washington	The printed version is now available from the University of Washington Press and other book sellers. An online version is also available here. Both feature identification tips, photos, occurrence maps, and more for over 300 species of rare plants.
Lists of Non-Vascular Species	Lists of rare mosses, lichens, macrofungi, and marine algae of Washington.
Watch List of Vascular Plants	A list of vascular plants that are more abundant and/or less threatened in Washington than previously assumed.
Plant Species in the Continental U.S.	Open NatureServe Explorer and search by common name or scientific name to find information on plants known to occur in the continental U.S.
Natural Heritage Methodology: Classification of Plants	NatureServe Explorer reports plant names as accepted by the Natural Heritage Netowrk's standard references.
Definitions of Listing, Status, and Ranks used in Natural Heritage Data	A list of definitions used in Natural Heritage Methodology.
Rare Plant Survey Guidelines	Suggested guidelines for conducting rare plant surveys for environmental review in Washington State
Rare Plant Sighting Form	Please contribute your sightings of rare plants in Washington using our Rare Plant Sighting Form.
GIS Data Sets	Spatial information on rare plant occurrences is available in the WNHP GIS Data Set. This GIS coverage may be licensed for professional environmental assessment or land management purposes by contacting the Environmental Review Coordinator at (360) 902-1667.
Project Area Report	Information on natural heritage features which have been reported at a specific project location can be provided in a Project Area Report prepared by program staff.