Species Details

Hesperolinon tehamense

Tehama County western flax

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Photo of Hesperolinon tehamense
© 2018 John Doyen
Photo of Hesperolinon tehamense
© 2021 Evan D. MacKinnon
Photo of Hesperolinon tehamense
© 2018 John Doyen
Scientific Name:
Hesperolinon tehamense H.K. Sharsm.
Common Name:
Tehama County western flax
Family: Linaceae
Element Code: PDLIN010C0
USDA Plants Symbol: HETE8
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: May-Jul
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Elevation:
100 - 1250 meters
330 - 4100 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
Microhabitat Details:
Microhabitat:
  • Serpentine
Notes:
Threats:

Threatened by vehicles and road maintenance.

Taxonomy:

Some plants from ALA, LAK, NAP, and STA cos. were previously treated as H. serpentinum ined.; plants from the inner north coast ranges of LAK and NAP cos. are now treated as H. sharsmithiae. Plants from ALA Co. are possibly H. clevelandii; needs further study. Similar to H. sharsmithiae.

Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 8 50 %
THREAT LIST:
Other 5 31%
Road/trail construction/maint. 5 31%
Non-native plant impacts 2 12%
Total Occurrences: 16
Element Occurrence Ranks:
A B C D X U
8 1 0 0 0 7
Occurrence Status:
Historical >20 Years 13
Recent <=20 Years 3
Presence:
Presumed Extant 16
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Glenn (GLE), Tehama (TEH)
Quads: Name (Quad Code)
Chrome (3912265), Elk Creek (3912255), Felkner Hill (3912256), Hall Ridge (3912276), Newville (3912275), Paskenta (3912285), Raglin Ridge (4012216), Riley Ridge (3912286)
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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