Taxon Report

Eriogonum microtheca Nutt. var. lapidicola Rev.

Inyo Mountains buckwheat

Print Report

Taxon Summary

Eriogonum microtheca var. lapidicola, commonly known as Inyo Mountains buckwheat, is a perennial deciduous shrub in the Polygonaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland, and Subalpine coniferous forest, growing at elevations from 2600 to 3100 meters. Eriogonum microtheca var. lapidicola is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Eriogonum microtheca Nutt. var. lapidicola Rev.
Common Name:	Inyo Mountains buckwheat
Family:	Polygonaceae
Element Code:	PDPGN083W6
USDA Plants Symbol:	ERMIL
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial deciduous shrub
Blooming Period: Jul-Sep	Jul-Sep
Elevation:	2600-3100 (8530-10170)
General Habitats:	Pinyon and juniper woodland, Subalpine coniferous forest
Microhabitat:	Carbonate, Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G5T4
State Rank:	S2S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear Lake (3411628), Cerro Gordo Peak (3611757), Cowhorn Valley (3711821), Mazourka Peak (3611881), Mt. Patterson (3811943), Telescope Peak (3611721), Tinemaha Reservoir (3711812), Waucoba Mtn. (3711811)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



See Phytologia 66(4):313 (1989) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2025].