Taxon Details

Eriogonum ursinum var. erubescens

blushing wild buckwheat

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Photo of Eriogonum ursinum var. erubescens
©2008 Sierra Pacific Industries
Photo of Eriogonum ursinum var. erubescens
©2014 Dean Wm. Taylor
Photo of Eriogonum ursinum var. erubescens
©2008 Sierra Pacific Industries

Taxon Summary:

Eriogonum ursinum var. erubescens, commonly known as blushing wild buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Chaparral (montane), and Lower montane coniferous forest, growing at elevations from 750 to 1900 meters. Eriogonum ursinum var. erubescens is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Scientific Name:
Eriogonum ursinum S. Watson var. erubescens Reveal & J.D. Knorr
Common Name:
blushing wild buckwheat
Family: Polygonaceae
Element Code: PDPGN08632
USDA Plants Symbol: ERURE
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
CA Rare Plant Rank: 1B.3
Fed List: None
State List: None
Global Rank: G3G4T3
State Rank:
S3
Other Status: BLM_S; SB_UCSC; USFS_S
CRPR Changes:
added to 1B.3 on 2006-10-24
Add Date: 2006-10-24
Date Edited: 2024-11-05
Lifeform: perennial herb
Blooming Period: Jun-Sep
JFMAMJJASOND
Elevation:
750 - 1900 meters
2460 - 6235 feet
General Habitats:
  • Chaparral (montane)
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky
  • Scree
  • Talus
Notes:
Possibly threatened by road construction and maintenance. See Phytologia 86(3):160-168 (2004) for original description.
Threats:
Taxonomy:
Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 18 50 %
THREAT LIST:
Logging 14 38%
Road/trail construction/maint. 6 16%
ORV activity 2 5%
Vandalism/dumping/litter 1 2%
Total Occurrences: 36
Element Occurrence Ranks:
A B C D X U
5 19 3 0 0 9
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 30
Presence:
Presumed Extant 36
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Bully Choop Mtn. (4012257), Carrville (4112216), Damnation Peak (4012285), Hanland Peak (4012283), Indian Creek Baldy (4112267), Lamoine (4012284), Lewiston (4012267), McKinley Mtn. (4112277), Papoose Creek (4012276), Russell Peak (4112268), Schell Mtn. (4012275), Shoeinhorse Mtn. (4112211), Whisky Bill Peak (4112215), Yreka (4112266)
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.
Presumed Extant
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