Taxon Report

Eriogonum nudum Benth. var. murinum Rev.

mouse buckwheat

Print Report


Taxon Summary

Eriogonum nudum var. murinum, commonly known as mouse buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Valley and foothill grassland, growing at elevations from 365 to 1130 meters. Eriogonum nudum var. murinum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Eriogonum nudum Benth. var. murinum Rev.
Common Name:
mouse buckwheat
Family: Polygonaceae
Element Code: PDPGN08495
USDA Plants Symbol: ERNUM
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Nov Jun-Nov
Elevation: 365-1130 (1200-3710)
General Habitats: Chaparral, Cismontane woodland, Valley and foothill grassland
Microhabitat: Sandy
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 11
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 2
   Poor (D) 0
   None (X) 0
   Unknown (U) 9
California Endemic:  True
California Counties and Islands: Name (Code)
Tulare (TUL)
Quads: Name (Quad Code)
Case Mountain (3611847), Dennison Peak (3611837), Giant Forest (3611857), Kaweah (3611848), Shadequarter Mtn. (3611858)

Threat List Data from the CNDDB

Threat List Total: 4
EOs with Threat Listed: Total EOs % of EOs
3 27 %
Road/trail construction/maint. 2 18%
Grazing 1 9%
Non-native plant impacts 1 9%
Other 1 9%

Notes

Known from fewer than twenty occurrences; some degraded by road improvements along General's Highway. Sequoia-Kings Canyon NP has adopted species management guidelines. See Aliso 7(2):228 (1976) for original description, and Phytologia 66(4):329-332 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 July 2025].