CNPS

CNPS Rare Plant Inventory

Species Details

Eriogonum wrightii var. olanchense

Olancha Peak buckwheat

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  Classification

Scientific Name:
Eriogonum wrightii Benth. var. olanchense (J.T. Howell) Rev.
Common Name:
Olancha Peak buckwheat
Family: Polygonaceae
Element Code: PDPGN086D3
USDA Plants Symbol: ERWRO
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.3
Fed List: None
State List: None
Global Rank: G5T2
State Rank:
 S2
Other Status: SB_CalBG/RSABG; USFS_S
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-12-06

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jul-Sep
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Elevation:
3260 - 3535 meters
10695 - 11600 feet
General Habitats:
  • Alpine boulder and rock field
  • Subalpine coniferous forest (gravelly, rocky)
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Known from only two occurrences on Olancha Pk. See Leaflets of Western Botany 6:151 (1951) for original description, and Phytologia 66(4):324-326 (1989) for taxonomic treatment.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 1
Total EOs % of EOs
EOs with Threat Listed: 2 100 %
THREAT LIST:
Other 2 100%

  Occurrence Data from the CNDDB

Total Occurrences: 2
Element Occurrence Ranks:
A B C D X U
2 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 2
Presence:
Presumed Extant 2
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Inyo (INY), Tulare (TUL)
Quads: Name (Quad Code)
Haiwee Pass (3611821), Olancha (3611831)
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. 2023. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 22 March 2023].