Species Details

Eriogonum microthecum var. johnstonii

Johnston's buckwheat

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Scientific Name:
Eriogonum microthecum Nutt. var. johnstonii Rev.
Common Name:
Johnston's buckwheat
Family: Polygonaceae
Element Code: PDPGN083W5
USDA Plants Symbol: ERMIJ
Synonyms/Other Names:
Lifeform: perennial deciduous shrub
Blooming Period: Jul-Sep
Elevation:
1829 - 2926 meters
6000 - 9600 feet
General Habitat:
  • Subalpine coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Rocky
Notes:
Known from fewer than ten occurrences; most in designated wilderness areas. Angeles NF has adopted species management guidelines. Threatened by mining and recreational activities. See Phytologia 66(4):313 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Other:
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
2 0 0 0 0 5
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 2
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear City (3411637), Cucamonga Peak (3411725), Fawnskin (3411638), Mount San Antonio (3411736), Onyx Peak (3411626)
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.

Map

Presumed Extant
Counties   Quads