Taxon Details

Eriogonum microtheca var. alpinum

alpine slender buckwheat

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Taxon Summary:

Eriogonum microtheca var. alpinum, commonly known as alpine slender buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Alpine dwarf scrub, and Great Basin scrub, growing at elevations from 2500 to 3300 meters. Eriogonum microtheca var. alpinum is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification

Scientific Name: Eriogonum microtheca Nutt. var. alpinum Rev.
Common Name: alpine slender buckwheat
Family:	Polygonaceae
Element Code:	PDPGN083WA
USDA Plants Symbol:	ERMIA
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5T3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2025-05-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jul-Sep

Elevation:
2500 - 3300 meters
8205 - 10825 feet

General Habitats:

Alpine dwarf scrub
Great Basin scrub

Microhabitat Details:

Microhabitat:

Gravelly (sometimes)
Rocky (sometimes)

Notes

Notes: See Brigham Young University Science Bulletin 13(1):31 (1971) for original description, and Phytologia 66(4):311-313 (1989) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Alpine (ALP), Mono (MNO), San Bernardino (SBD), Tuolumne (TUO)

Quads: Name (Quad Code)
Big Alkali (3811922), Bodie (3811921), Bridgeport (3811932), Buckeye Ridge (3811924), Carson Pass (3811968), Chris Flat (3811944), Convict Lake (3711857), Crestview (3711878), Cucamonga Peak (3411725), Disaster Peak (3811946), Dome Hill (3811931), Dunderberg Peak (3811913), Ebbetts Pass (3811957), Fales Hot Springs (3811934), Indian Meadows (3711886), Koip Peak (3711972), Lundy (3811912), Mammoth Mtn. (3711961), Mount Dana (3711982), Mt. Patterson (3811943), Pickel Meadow (3811935), Sonora Pass (3811936), Tioga Pass (3711983)

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

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CNPS Rare Plant Inventory