Taxon Details

Eriogonum callistum

Tehachapi buckwheat

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Taxon Summary:

Eriogonum callistum, commonly known as Tehachapi buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Chaparral, growing at elevations from 1400 to 1730 meters. Eriogonum callistum is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Eriogonum callistum Reveal
Common Name: Tehachapi buckwheat
Family:	Polygonaceae
Element Code:	PDPGN08790
USDA Plants Symbol:
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G1
State Rank:	S1
Other Status:	SB_CalBG/RSABG
CRPR Changes: added to 1B.1 on 2008-10-14
Add Date:	2008-10-14
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jul

Elevation:
1400 - 1730 meters
4595 - 5675 feet

General Habitats:

Chaparral

Microhabitat Details: limestone

Microhabitat:

Openings
Rocky

Notes

Notes: Known from fewer than 5 occurrences. Potentially threatened by urban and energy development. Not in The Jepson Manual (1993). See SIDA 22(2): 857-861 (2006) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	2	33 %
Development	2	33%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					6
A	B	C	D	X	U
4	0	0	0	0	2

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	6

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Kern (KRN)

Quads: Name (Quad Code)
Lebec (3411877), Winters Ridge (3411886)

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