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Washington Natural Heritage Information System
List of Known Occurrences of Rare Plants in Washington
August 2012

Columbia County

A key to status fields appears below. If a scientific name is underlined you may click on it to go to a field guide page (pdf format, average size 300 kb) for that taxon.

Scientific Name
Common Name
State Status
Federal Status
Historic Record
Allium campanulatum Sierra onion T
Allium dictuon Blue Mountain onion T SC
Bolandra oregana bolandra S
Cypripedium fasciculatum clustered lady's-slipper S SC
Erigeron disparipilus Snake River daisy R1
Hackelia diffusa var. diffusa diffuse stickseed T
Horkelia fusca ssp. capitata bighead horkelia R1
Lomatium serpentinum Snake Canyon desert-parsley S H
Lupinus lepidus var. cusickii prairie lupine R2 SC H
Mimulus washingtonensis Washington monkey-flower X H
Minuartia pusilla var. pusilla annual sandwort R1 H
Ranunculus populago mountain buttercup S
Salix monochroma one-color willow R1 H
Senecio crassulus thick-leaved groundsel R1
Description of Codes
Historic Record:
H indicates most recent sighting in the county is before 1977.
State Status
State Status of plant species is determined by the Washington Natural Heritage Program. Factors considered include abundance, occurrence patterns, vulnerability, threats, existing protection, and taxonomic distinctness.
Values include:
E = Endangered. In danger of becoming extinct or extirpated from Washington.
T = Threatened. Likely to become Endangered in Washington.
S = Sensitive. Vulnerable or declining and could become Endangered or Threatened in the state.
X = Possibly extinct or Extirpated from Washington.
R1 = Review group 1. Of potential concern but needs more field work to assign another rank.
R2 = Review group 2. Of potential concern but with unresolved taxonomic questions.
Federal Status
Federal Status under the U.S. Endangered Species Act(USESA) as published in the Federal Register:
LE = Listed Endangered. In danger of extinction.
LT = Listed Threatened. Likely to become endangered.
PE = Proposed Endangered.
PT = Proposed Threatened.
C = Candidate species. Sufficient information exists to support listing as Endangered or Threatened.
SC = Species of Concern. An unofficial status, the species appears to be in jeopardy, but insufficient information to support listing.

Washington Natural Heritage Program - www.dnr.wa.gov/ResearchScience/Topics/NaturalHeritage/Pages/amp_nh.aspx/
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Washington Dept. of Natural Resources, PO Box 47016, Olympia, WA 98504-7016