CNPS

CNPS Rare Plant Inventory

Species Details

Eriogonum umbellatum var. torreyanum

Donner Pass buckwheat

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Classification

Scientific Name:
Eriogonum umbellatum Torr. var. torreyanum (Gray) Jones
Common Name:
Donner Pass buckwheat
Family: Polygonaceae
Element Code: PDPGN086U9
USDA Plants Symbol: ERUMT
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G5T2
State Rank:
 S2
Other Status: USFS_S
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-12-09

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jul-Sep
Elevation:
1855 - 2620 meters
6085 - 8595 feet
General Habitat:
  • Meadows and seeps
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Rocky
  • Volcanic

Notes

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.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 23
Element Occurrence Ranks:
A B C D X U
1 3 1 1 1 16
Occurrence Status:
Historical >20 Years 17
Recent <=20 Years 6
Presence:
Presumed Extant 22
Possibly Extirpated 1
Presumed Extirpated 0

Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Nevada (NEV), Placer (PLA), Sierra (SIE)
Quads: Name (Quad Code)
Dog Valley (3912051), English Mtn. (3912045), Granite Chief (3912023), Independence Lake (3912043), Norden (3912033), Tahoe City (3912022), Truckee (3912032), Webber Peak (3912044)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

Map

Presumed Extant
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 1 July 2022].