CNPS Inventory Plant Detail

Eriogonum umbellatum var. torreyanum

Common Name:	Donner Pass buckwheat
Family:	Polygonaceae
Synonyms:
Element Code:	PDPGN086U9
Full Name:	Eriogonum umbellatum Torr. var. torreyanum (Gray) Jones
USDA PLANTS Symbol:	ERUMT

Biology
Lifeform: perennial herb Blooming Period: July - September Habitat: volcanic, rocky. • Meadows and seeps • Upper montane coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G5T2 T2: Imperiled. G5: (species) Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 21
Element Occurrence Ranks:

A B C D X U

0 3 1 0 2 15

Population Status:

Historic >20 yrs	Recent <=20 yrs
19	2

Presence:

Present Extant	Possibly Extirpated	Extirpated
19	2	0

Notes

Known from approximately 20 occurrences. Similar to var. glaberrimum. Draft interim management guide prepared by USFS in 1993. See Fremontia 1(3):20 (1973) for discussion of rediscovery at type locality, and Phytologia 66(4):341-347 (1989) for taxonomic treatment.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2010-03-15

Location

Elevation: 1855 - 2620 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Nevada (NEV), Placer (PLA), Sierra (SIE)

Quads: name (DWR code) USGS code
Tahoe City (538B) 39120B2, Granite Chief (539A) 39120B3, Truckee (554C) 39120C2, Independence Lake (555A) 39120D3, Webber Peak (555B) 39120D4, Norden (555D) 39120C3, Dog Valley (570D) 39120E1

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

771

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-120.25,39.25