Roadless Areas
Home/Species/ Trinity Buckwheat

Eriogonum alpinum

Engelm.

Trinity Buckwheat

G2Imperiled Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.136109
Element CodePDPGN08060
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygonales
FamilyPolygonaceae
GenusEriogonum
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 Date2016-09-14
Change Date2016-09-14
Edition Date2016-09-14
Edition AuthorsD. Gries, rev. R. Bittman 2006, rev. R. Bittman (2016)
Threat ImpactMedium
Range Extent250-1000 square km (about 100-400 square miles)
Number of Occurrences6 - 20
Rank Reasons
Endemic to California, Eriogonum alpinum is known from about 17 occurrences in Siskiyou and Trinity Counties. Twelve have not been seen recently and need rechecking. Some populations are quite large and the total population number may be as high as 60,000+. This is a serpentine endemic from 2 main mountain areas: Mt. Eddy and Cory Peak. A proposed ski development threatened Mt. Eddy at one time, but has been withdrawn. Other threats include grazing and erosion.
Range Extent Comments
Endemic to Siskiyou and Trinity counties.
Occurrences Comments
17 total occurrences; only 5 recently seen (CNDDB 2016).
Threat Impact Comments
Threatened by cattle trampling and erosion; Too high up to be threatened by timber harvest (CNDDB 2016). The largest population near Mt. Eddy was threatened with a ski development in the 1980's, but this was withdrawn. No other threats are listed.
Ecology & Habitat

Habitat

Rocky ridges and talus slopes; serpentine substrate. Found within Subalpine Coniferous Forest, Upper Montane Coniferous Forest, and Alpine Fell-fields. 2000 - 2900 m.
Terrestrial Habitats
Forest/WoodlandForest - ConiferAlpineBarrensBare rock/talus/scree
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial development———
1.3 - Tourism & recreation areas———
2 - Agriculture & aquaculture———
2.3 - Livestock farming & ranching———

—

Plant Characteristics
Economic Value (Genus)No
Roadless Areas (3)
California (3)
AreaForestAcres
Castle Crags AShasta-Trinity National Forest113
Castle Crags BShasta-Trinity National Forest1,619
Mt. EddyShasta-Trinity National Forest7,232
References (9)
  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 Natural Diversity Database (CNDDB). 2016. RareFind Version 5.1.1. California Department of Fish and Game, Sacramento.
  4. Flora of North America Editorial Committee (FNA). 2005. Flora of North America north of Mexico. Vol. 5. Magnoliophyta: Caryophyllidae: Caryophyllales, Polygonales, and Plumbaginales. Oxford Univ. Press, New York. vii + 656 pp.
  5. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 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.
  7. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  8. Nakamura, G., and J. K. Nelson, eds. 2001. Illustrated field guide to selected rare plants of northern California. University of California Agriculture and Natural Resources publication 3395, Oakland, CA. 370 pp.
  9. Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.