Taxon Report

Eriogonum microtheca Nutt. var. schoolcraftii Reveal

Schoolcraft's wild buckwheat

Print Report

Taxon Summary

Eriogonum microtheca var. schoolcraftii, commonly known as Schoolcraft's wild buckwheat, is a perennial shrub in the Polygonaceae that is found in California and elsewhere. It occurs within Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 1300 to 1750 meters. Eriogonum microtheca var. schoolcraftii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Eriogonum microtheca Nutt. var. schoolcraftii Reveal
Common Name:	Schoolcraft's wild buckwheat
Family:	Polygonaceae
Element Code:	PDPGN083WG
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial shrub
Blooming Period: Jul-Sep	Jul-Sep
Elevation:	1300-1750 (4265-5740)
General Habitats:	Great Basin scrub, Pinyon and juniper woodland
Microhabitat:	Rocky, Sandy
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G5T3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	BLM_S; USFS_S
CRPR Changes:	added to 1B.2 on 2007-07-10

Occurrence Data from the CNDDB


Total Occurrences:	7
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	7

Location


California Endemic: False
California Counties and Islands: Name (Code)
Lassen (LAS), Plumas (PLU)
Quads: Name (Quad Code)
Constantia (3912081), Doyle (4012011), Ferris Creek (4012013), McKesick Peak (4012012), Milford (4012023)

Threat List Data from the CNDDB


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

Notes



Known in California only from the Diamond and Ft. Sage Mtns. Potentially threatened by development. Possibly threatened by non-native plants and habitat conversion. See Phytologia 86: 148 (2004) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2007-07-10

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 7 December 2025].