Species Details

Leptosiphon jepsonii

Jepson's leptosiphon

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Photo of Leptosiphon jepsonii
© 2012 Aaron Arthur
Photo of Leptosiphon jepsonii
© 2020 John Doyen
Photo of Leptosiphon jepsonii
© 2010 Vernon Smith
Scientific Name:
Leptosiphon jepsonii (D.W. Schemske & C. Goodwillie) Porter & Johnson
Common Name:
Jepson's leptosiphon
Family: Polemoniaceae
Element Code: PDPLM09140
USDA Plants Symbol: LEJE
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Mar-May
JFMAMJJASOND
Elevation:
100 - 500 meters
330 - 1640 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Volcanic (usually)
Notes:
Threatened by habitat conversion and non-native plants. Similar to L. parviflorus. Not in The Jepson Manual. See MadroƱo 43(4):455 (1996) for original description, and Aliso 19(1):55-91 (2000) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 8
Total EOs % of EOs
EOs with Threat Listed: 8 16 %
THREAT LIST:
Agriculture 3 5%
Non-native plant impacts 3 5%
ORV activity 2 3%
Other 1 1%
Road/trail construction/maint. 1 1%
Total Occurrences: 51
Element Occurrence Ranks:
A B C D X U
2 4 1 1 0 43
Occurrence Status:
Historical >20 Years 27
Recent <=20 Years 24
Presence:
Presumed Extant 51
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), Solano (SOL), Sonoma (SON), Yolo (YOL)
Quads: Name (Quad Code)
Aetna Springs (3812264), Calistoga (3812255), Capell Valley (3812242), Cazadero (3812351), Chiles Valley (3812253), Cordelia (3812222), Detert Reservoir (3812265), Glen Ellen (3812235), Jimtown (3812267), Kenwood (3812245), Mark West Springs (3812256), Middletown (3812275), Monticello Dam (3812251), Mount St. Helena (3812266), Napa (3812233), Rutherford (3812244), Santa Rosa (3812246), St. Helena (3812254), Walter Springs (3812263), Whispering Pines (3812276), 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.
Presumed Extant
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