Species Details

Leptosiphon rosaceus

rose leptosiphon

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Photo of Leptosiphon rosaceus
© 2013 Aaron Schusteff
Photo of Leptosiphon rosaceus
© 2013 Aaron Schusteff
Photo of Leptosiphon rosaceus
© 2013 Aaron Schusteff

Species Description:

Leptosiphon rosaceus, commonly known as rose leptosiphon, is a annual herb in the Polemoniaceae that is found only in California. It occurs within Coastal bluff scrub, growing at elevations from 0 to 100 meters. Leptosiphon rosaceus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Notes:
Possibly threatened by competition and non-native plants. Not in The Jepson Manual. See Curtis Bot. Mag. 96:tab. 5863 (1870) for original description, and Madroño 48(2):75 (2001) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 18 58 %
THREAT LIST:
Grazing 12 38%
Non-native plant impacts 7 22%
Foot traffic/trampling 3 9%
Erosion/runoff 1 3%
Road/trail construction/maint. 1 3%
Total Occurrences: 31
Element Occurrence Ranks:
A B C D X U
0 11 7 2 6 5
Occurrence Status:
Historical >20 Years 25
Recent <=20 Years 6
Presence:
Presumed Extant 25
Possibly Extirpated 6
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN), San Francisco (SFO)*, San Mateo (SMT), Sonoma (SON)*
Quads: Name (Quad Code)
Drakes Bay (3812218), Half Moon Bay (3712244), Hunters Point (3712263), Montara Mountain (3712254), Oakland West (3712273), Pigeon Point (3712224)*, Plantation (3812353)*, Point Bonita (3712275), San Francisco North (3712274)*, San Francisco South (3712264), San Gregorio (3712234)*, Tomales (3812228), Valley Ford (3812238)*
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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