Taxon Details

Leptosiphon croceus

coast yellow leptosiphon

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

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.

Classification

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: Linanthus croceus Eastwood
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	CE (2019-04-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_UCBG
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-Jun

Elevation:
10 - 150 meters
35 - 490 feet

General Habitats:

Coastal bluff scrub
Coastal prairie

Microhabitat Details:

Microhabitat:

Notes

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 Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	1	100 %
Development	1	100%
Erosion/runoff	1	100%
Foot traffic/trampling	1	100%
Insufficient population/stand size	1	100%
Non-native plant impacts	1	100%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					1
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

Location

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.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory