CNPS

CNPS Rare Plant Inventory

Species Details

Eriogonum ochrocephalum var. ochrocephalum

ochre-flowered buckwheat

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  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:

  Conservation Status

CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G5T2T3
State Rank:
 S2
Other Status:
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 2001-01-01
Date Edited: 2021-12-09

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Jun
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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 Total: 1
Total EOs % of EOs
EOs with Threat Listed: 1 17 %
THREAT LIST:
Mining 1 16%

  Occurrence Data from the CNDDB

Total Occurrences: 6
Element Occurrence Ranks:
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

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 18 April 2024].