Species Details

Leptosiphon ambiguus

serpentine leptosiphon

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Classification

Scientific Name: Leptosiphon ambiguus (Rattan) J.M. Porter & L.A. Johnson
Common Name: serpentine leptosiphon
Family:	Polemoniaceae
Element Code:	PDPLM09020
USDA Plants Symbol:	LEAM13
Synonyms/Other Names: Linanthus ambiguus (Rattan) Greene

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S4
Other Status:	SB_UCBG
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-Jun

Elevation:
120 - 1130 meters
395 - 3710 feet

General Habitats:

Cismontane woodland
Coastal scrub
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Serpentine (usually)

Notes

Notes: Threatened by non-native plants and habitat alteration. To be expected in other adjacent counties. A synonym of Linanthus ambiguus in TJM (1990). See Botanical Gazette 11:339 (1886) 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:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Alameda (ALA), Butte (BUT), Contra Costa (CCA), El Dorado (ELD), Fresno (FRE), Merced (MER), Monterey (MNT), San Benito (SBT), San Joaquin (SJQ), San Mateo (SMT), Santa Clara (SCL), Santa Cruz (SCR), Sonoma (SON), Stanislaus (STA)

Quads: Name (Quad Code)
Altamont (3712166), Big Basin (3712222), Calaveras Reservoir (3712147), Cedar Mtn. (3712155), Cerro Colorado (3612068), Cherry Peak (3612162), Chittenden (3612185), Clayton (3712188), Copper Mtn. (3712143), Cupertino (3712231), Dublin (3712168), Eylar Mtn. (3712145), Gilroy (3712115), Hamlin Canyon (3912166), Hepsedam Peak (3612037), Hernandez Reservoir (3612047), Idria (3612046), Isabel Valley (3712135), La Costa Valley (3712157), Lick Observatory (3712136), Livermore (3712167), Llanada (3612058), Loma Prieta (3712117), Lone Tree Creek (3712154), Los Banos (3712017), Los Banos Valley (3612181), Los Gatos (3712128), Mendenhall Springs (3712156), Mercey Hot Springs (3612067), Morgan Hill (3712126), Mt. Boardman (3712144), Mt. Day (3712146), Mt. Madonna (3712116), Mt. Sizer (3712125), Mt. Stakes (3712134), North Chalone Peak (3612142), Ortigalita Peak (3612078), Pacheco Pass (3712112), Paicines (3612163), Palo Alto (3712242), Panoche (3612057), Panoche Pass (3612161), Paradise East (3912175), Patterson (3712142), Pilot Hill (3812171), San Benito Mtn. (3612036), San Francisco South (3712264), San Jose East (3712137), San Jose West (3712138), San Luis Dam (3712111), San Luis Ranch (3712027), San Mateo (3712253), Santa Rita Peak (3612035), Santa Teresa Hills (3712127), Solyo (3712153), Sonoma (3812234), Tassajara (3712177), Tres Pinos (3612173), Tumey Hills (3612056), Volta (3712018), Wilcox Ridge (3712133), Woodside (3712243)

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

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CNPS Rare Plant Inventory