Taxon Details

Acmispon dendroideus var. traskiae

San Clemente Island lotus

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Photo of Acmispon dendroideus var. traskiae

Taxon Summary:

Acmispon dendroideus var. traskiae, commonly known as San Clemente Island lotus, is a perennial shrub in the Fabaceae that is found only in California. It occurs within Coastal bluff scrub, Coastal scrub, and Valley and foothill grassland, growing at elevations from 15 to 365 meters. Acmispon dendroideus var. traskiae is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Acmispon dendroideus (Greene) Brouillet var. traskiae (Eastw. ex Abrams) Brouillet
Common Name: San Clemente Island lotus
Family:	Fabaceae
Element Code:	PDFAB2A1G2
USDA Plants Symbol:
Synonyms/Other Names: Lotus scoparius ssp. traskiae Lotus dendroideus var. traskiae
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	FD (2023-02-24)
State List:	CE (1982-04-01)
Global Rank:	G4T3
State Rank:	S3
Other Status:	SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: perennial shrub

Blooming Period: Feb-Aug

Elevation:
15 - 365 meters
50 - 1200 feet

General Habitats:

Coastal bluff scrub
Coastal scrub
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Notes

Notes: Federally listed as Endangered on 1977-09-12, then listed as Threatened on 2013-08-26; Delisted due to Recovery on 2023-02-24. Feral herbivores removed from SCM Isl., and vegetation recovering. Occasionally hybridizes with A. argophyllus var. argenteus. See Brittonia 30:466-472 (1978) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	1	3 %
Development	1	2%
Road/trail construction/maint.	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					40
A	B	C	D	X	U
0	0	0	0	0	40

Occurrence Status:
Historical >20 Years	13
Recent <=20 Years	27

Presence:
Presumed Extant	40
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX)

Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873)

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