Roadless Areas
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Trifolium douglasii

House

Douglas Clover

G3Vulnerable Found in 1 roadless area NatureServe Explorer →
G3VulnerableGlobal Rank
High - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.130457
Element CodePDFAB400T0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusTrifolium
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-06-30
Change Date2016-06-30
Edition Date2016-06-30
Edition AuthorsGamon, John G. (1992), rev. A. Olivero (2002), rev. L. Morse (2002), rev. Treher (2016)
Threat ImpactHigh - medium
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Restricted to northeastern Oregon, southeastern Washington, and adjacent Idaho; occurring in moist meadows or prairie remnants (Isely 1998). Primarily threatened by livestock that trample and graze plants. About 60 extant occurrences and an additional 20 historic occurrences.
Range Extent Comments
Occurs in northeast Oregon, southeast Washington, and adjacent Idaho (Isely 1998).
Occurrences Comments
Eighty occurrences documented but twenty of those are historic and mostly based on herbarium specimens that could not be located.
Threat Impact Comments
Loss of habitat through conversion of land for agriculture and habitat degradation through livestock grazing. About a third of the occurrences are in cattle or sheep allotments on National Forest Land.
Ecology & Habitat

Habitat

Wet or damp low meadows, often along creeks.
Terrestrial Habitats
Grassland/herbaceous
Palustrine Habitats
HERBACEOUS WETLANDFORESTED WETLANDRiparian
Other Nations (1)
United StatesN3
ProvinceRankNative
WashingtonS1Yes
OregonS2Yes
IdahoS1Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureRestricted (11-30%)Serious - slightHigh (continuing)

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (1)
Oregon (1)
AreaForestAcres
HomesteadWallowa-Whitman National Forest5,817
References (3)
  1. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young University; MLBM Press, Provo, Utah. 1007 pp.
  2. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  3. Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.