Taxon Details

Dudleya candelabrum

candleholder dudleya

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Taxon Summary:

Dudleya candelabrum, commonly known as candleholder dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, Closed-cone coniferous forest, and Coastal scrub, growing at elevations from 5 to 610 meters. Dudleya candelabrum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Dudleya candelabrum Rose
Common Name: candleholder dudleya
Family:	Crassulaceae
Element Code:	PDCRA04080
USDA Plants Symbol:	DUCA2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2025-10-29

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Apr-Jul

Elevation:
5 - 610 meters
15 - 2000 feet

General Habitats:

Closed-cone coniferous forest
Chaparral
Coastal scrub

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: Threatened by feral herbivores. See Bulletin of the New York Botanical Garden 3(9):1-45 (1903) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	17	17 %
Erosion/runoff	11	11%
Non-native animal impacts	9	9%
Grazing	2	2%
Non-native plant impacts	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					98
A	B	C	D	X	U
1	4	4	0	0	89

Occurrence Status:
Historical >20 Years	58
Recent <=20 Years	40

Presence:
Presumed Extant	98
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), San Miguel Island West (3312084), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081), Santa Rosa Island South (3312071), Santa Rosa Island West (3312082)

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