Taxon Details

Malacothrix indecora

Santa Cruz Island malacothrix

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Malacothrix indecora, commonly known as Santa Cruz Island malacothrix, is a annual herb in the Asteraceae that is found only in California. It occurs within Chaparral, Coastal bluff scrub, Coastal dunes, and Coastal scrub, growing at elevations from 5 to 30 meters. Malacothrix indecora is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Malacothrix indecora Greene
Common Name: Santa Cruz Island malacothrix
Family:	Asteraceae
Element Code:	PDAST660J0
USDA Plants Symbol:	MAIN2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FE (1997-07-31)
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-03-01

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-Sep

Elevation:
5 - 30 meters
15 - 100 feet

General Habitats:

Coastal bluff scrub
Chaparral
Coastal dunes
Coastal scrub

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: Known from fewer than ten occurrences. Threatened by feral herbivores, and possibly by erosion. See Bulletin of the California Academy of Sciences 2:152 (1886) for original description, and Madroño 44(3):223-244 (1997) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	6	86 %
Erosion/runoff	6	85%
Non-native plant impacts	6	85%
Foot traffic/trampling	3	42%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					7
A	B	C	D	X	U
0	4	0	0	0	3

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	3

Presence:
Presumed Extant	7
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Santa Barbara (SBA)

Quads: Name (Quad Code)
San Miguel Island East (3312083), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986)*, Santa Cruz Island C (3311985), Santa Rosa Island North (3312081)

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