Taxon Details

Leptosiphon croceus

coast yellow leptosiphon

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Photo of Leptosiphon croceus
© 2018 Neal Kramer
Photo of Leptosiphon croceus
© 2009 Neal Kramer
Photo of Leptosiphon croceus
© 2018 Neal Kramer

Taxon Summary:

Leptosiphon croceus, commonly known as coast yellow leptosiphon, is a annual herb in the Polemoniaceae that is found only in California. It occurs within Coastal bluff scrub, and Coastal prairie, growing at elevations from 10 to 150 meters. Leptosiphon croceus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Scientific Name:
Leptosiphon croceus (Eastw.) J.M. Porter & L.A. Johnson
Common Name:
coast yellow leptosiphon
Family: Polemoniaceae
Element Code: PDPLM09170
USDA Plants Symbol:
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
Lifeform: annual herb
Blooming Period: Apr-Jun
JFMAMJJASOND
Elevation:
10 - 150 meters
35 - 490 feet
General Habitats:
  • Coastal bluff scrub
  • Coastal prairie
Microhabitat Details:
Microhabitat:
Notes:
Threatened by development. Possibly threatened by foot traffic. See L. parviflorus in TJM (1993). See Botanical Gazette 37:442 (1904) for original description, and Aliso 19(1):55-91 (2000) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 1 100 %
THREAT LIST:
Development 1 100%
Erosion/runoff 1 100%
Foot traffic/trampling 1 100%
Insufficient population/stand size 1 100%
Non-native plant impacts 1 100%
Total Occurrences: 1
Element Occurrence Ranks:
A B C D X U
0 0 0 1 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 1
Presence:
Presumed Extant 1
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Mateo (SMT)
Quads: Name (Quad Code)
Montara Mountain (3712254)
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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