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Home/Species/ Elmer's Lupine

Lupinus elmeri

Greene

Elmer's Lupine

G2Imperiled Found in 2 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.150023
Element CodePDFAB2B1G0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusLupinus
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 Date2012-12-06
Change Date2013-08-20
Edition Date2010-03-30
Edition AuthorsOliver, L.
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences6 - 20
Rank Reasons
Lupinus elmeri is endemic to California and is situated in two areas in and near Trinity Co. Around 15 extant occurrences are known, and some of these occurrences occur over the Trinity Co. border in Humboldt, Siskiyou, and Shasta Counties. There is one outlier population in Shasta Co. (CNPS 2010). This lupine species is threatened by logging activities, however, this species thrives in distubred areas. It seems that if timber harvesting was done with caution and care that this species could persist in those areas.
Range Extent Comments
Lupinus elmeri is endemic to California and known from a very small range in the following northwestern counties: Humboldt, Shasta, Siskiyou and Trinity. Nearly all of the occurrences of this species occur in Trinity county in two concentrations one toward the north and the other area to the west. There is one outlier occurrence in the northeast section of Shasta Co. Occurrences in the other counties, Humboldt and Siskiyou, are located just over the border from Trinity Co. This lupine species is only known from the South Fork Mountain area.
Occurrences Comments
There are approximately 15 occurrences of this species, however, some of these occurrences are very small.
Threat Impact Comments
Timber harvest activities are the greatest threat to Lupinus elmeri. With that said, this species responds positively to disturbance given that it needs full sun to thrive. In occurrences where logging has occurred it has been noted that the plant can thrive due to the thinning of the canopy. It also spreads along roads and trails. Other threats to this species include road maintenance, and camping.
Ecology & Habitat

Habitat

Gravel or clay soils, in open glades in fir forest. 1370 - 2000 m.
Terrestrial Habitats
Forest/WoodlandForest - Conifer
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (2)
California (2)
AreaForestAcres
Bonanza KingShasta-Trinity National Forest16,402
UnderwoodSix Rivers National Forest6,591
References (6)
  1. CalFlora. 2005. Information on California plants for education, research and conservation. Berkeley, California: The CalFlora Database [web application]. Available: http://www.calflora.org/. (Accessed 2005)
  2. California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
  3. California Native Plant Society (CNPS). 2010. Inventory of Rare and Endangered Plants (online edition, v7-10a). California Native Plant Society. Sacramento, CA. Available at http://www.cnps.org/inventory (Accessed Jan. 26, 2010).
  4. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  5. 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.
  6. 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.