Taxon Details

Eriogonum ochrocephalum var. ochrocephalum

ochre-flowered buckwheat

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Eriogonum ochrocephalum var. ochrocephalum, commonly known as ochre-flowered buckwheat, is a perennial herb 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 1200 to 2410 meters. Eriogonum ochrocephalum var. ochrocephalum is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Eriogonum ochrocephalum S. Watson var. ochrocephalum
Common Name: ochre-flowered buckwheat
Family:	Polygonaceae
Element Code:	PDPGN084C6
USDA Plants Symbol:	EROCO2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5T2T3
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jun

Elevation:
1200 - 2410 meters
3935 - 7905 feet

General Habitats:

Great Basin scrub
Pinyon and juniper woodland

Microhabitat Details:

Microhabitat:

Clay (sometimes)
Volcanic (sometimes)

Notes

Notes: Known in CA only from Long Valley; need quads. Threatened by mining. See Botany of California 2:480 (1880) for original description, and Phytologia 66(4):321 (1989) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	17 %
Mining	1	16%

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	5
Recent <=20 Years	1

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV), Oregon (OR)

California Counties and Islands: Name (Code)
Lassen (LAS), Plumas (PLU)

Quads: Name (Quad Code)
Seven Lakes Mtn. (3911988), Beckwourth Pass (3912071), Calneva Lake (4012021), Constantia (3912081), Diamond Mtn. (4012036), Little Mud Flat (4012042)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory