Taxon Details

Dudleya traskiae

Santa Barbara Island dudleya

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Taxon Summary:

Dudleya traskiae, commonly known as Santa Barbara Island dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Coastal bluff scrub, and Coastal scrub, growing at elevations from 30 to 110 meters. Dudleya traskiae is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Dudleya traskiae (Rose) Moran
Common Name: Santa Barbara Island dudleya
Family:	Crassulaceae
Element Code:	PDCRA040Q0
USDA Plants Symbol:	DUTR
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	FE (1978-04-26)
State List:	CE (1979-11-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2023-10-03

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Feb-Jul

Elevation:
30 - 110 meters
100 - 360 feet

General Habitats:

Coastal bluff scrub
Coastal scrub

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: See Bulletin of the New York Botanical Garden 3:34 (1903) for original description, and Fremontia 5(4):37-38 (1978) for discussion of rediscovery and 14(4):3-6 (1987) for information on recovery work.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	3	100 %
Erosion/runoff	3	100%

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	3

Presence:
Presumed Extant	3
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)
Santa Barbara Island (3311848)

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