Species Details

Hesperolinon sharsmithiae

Sharsmith's western flax

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Photo by © 2017 Aaron Arthur  max-height:128px; max-width:145px;
© 2017 Aaron Arthur
Photo by © 2017 Aaron Arthur  max-height:128px; max-width:145px;
© 2017 Aaron Arthur
Photo by © 2021 Aaron Arthur  max-height:128px; max-width:145px;
© 2021 Aaron Arthur
Scientific Name:
Hesperolinon sharsmithiae R. O’Donnell
Common Name:
Sharsmith's western flax
Family: Linaceae
Element Code: PDLIN010E0
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2Q
State Rank:
S2
Other Status: BLM_S; SB_UCSC
CRPR Changes:
added to 1B.2 on 2012-12-14
Add Date: 2012-12-14
Date Edited: 2022-01-05
Lifeform: annual herb
Blooming Period: May-Jul
Elevation:
270 - 300 meters
885 - 985 feet
General Habitat:
  • Chaparral
General Micro Habitat:
Micro Habitat:
  • Serpentinite
Notes:
Threatened by development. Includes plants previously identified as H. tehamense and H. serpentinum ined. Similar to H. bicarpellatum, H. clevelandii, H. disjunctum, and H. tehamense. Not in TJM 2. See Madroño 53(4):404-408 (2006) for original description and The Four Seasons 13(4):1-54 (2010) for additional taxonomic information.
Threats:
Taxonomy:
Other:
Total Occurrences: 32
Element Occurrence Ranks:
A B C D X U
3 8 4 0 0 17
Occurrence Status:
Historical >20 Years 28
Recent <=20 Years 4
Presence:
Presumed Extant 32
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Lake (LAK), Napa (NAP)
Quads: Name (Quad Code)
Aetna Springs (3812264), Capell Valley (3812242), Chiles Valley (3812253), Detert Reservoir (3812265), Jericho Valley (3812274), Lower Lake (3812285), Middletown (3812275), St. Helena (3812254), Walter Springs (3812263), Yountville (3812243)
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