Species Details

Hesperolinon drymarioides

drymaria-like western flax

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Photo of Hesperolinon drymarioides
© Niall McCarten and CNPS
Photo of Hesperolinon drymarioides
© 1998 John Game
Photo of Hesperolinon drymarioides
© 2013 Jake Ruygt
Scientific Name:
Hesperolinon drymarioides (Curran) Small
Common Name:
drymaria-like western flax
Family: Linaceae
Element Code: PDLIN01090
USDA Plants Symbol: HEDR4
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: May-Aug
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Elevation:
100 - 1130 meters
330 - 3710 feet
General Habitats:
  • Closed-cone coniferous forest
  • Chaparral
  • Cismontane woodland
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Serpentine
Notes:
Threats:

Threatened by mining and vehicles, and potentially threatened by renewable energy development.

Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 14 58 %
THREAT LIST:
Development 6 25%
Road/trail construction/maint. 5 20%
ORV activity 4 16%
Mining 2 8%
Wood cutting or brush clearing 1 4%
Total Occurrences: 24
Element Occurrence Ranks:
A B C D X U
6 8 7 0 0 3
Occurrence Status:
Historical >20 Years 11
Recent <=20 Years 13
Presence:
Presumed Extant 24
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Lake (LAK), Napa (NAP)
Quads: Name (Quad Code)
Elk Mountain (3912238), Gilmore Peak (3912235), Hough Springs (3912225), Jericho Valley (3812274), Knoxville (3812273), Leesville (3912224), Potato Hill (3912237), St. John Mtn. (3912246), Stonyford (3912245), Wilbur Springs (3912214), Wilson Valley (3812284)
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.
Presumed Extant
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Original Description: Bulletin of the California Academy of Sciences 1:152 (1885)
Taxonomic Treatment: University of California Publications in Botany 32:235-314 (1961)
Species Account: Hesperolinon drymarioides profile for potential Species of Conservation Concern evaluation (2018)
Other: USFS Potential Species of Conservation Concern Profile