Taxon Report

Dudleya attenuata (S. Watson) Moran ssp. attenuata

Orcutt's dudleya

Print Report

Classification


Scientific Name:	Dudleya attenuata (S. Watson) Moran ssp. attenuata
Common Name:	Orcutt's dudleya
Family:	Crassulaceae
Element Code:	PDCRA04032
USDA Plants Symbol:
Synonyms/Other Names:	Dudleya attenuata ssp. orcuttii

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Jul	May-Jul
Elevation:	3-50 (10-165)
General Habitats:	Chaparral, Coastal bluff scrub, Coastal scrub
Microhabitat:	Gravelly (sometimes), Rocky (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G4T1T2
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	changed from 2.1 to 2B.1 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	1
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	1
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Imperial Beach (3211751)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	1	100 %
Development	1	100%
Foot traffic/trampling	1	100%
Military operations	1	100%
Recreational use (non-ORV)	1	100%
Road/trail construction/maint.	1	100%

Notes



Known in CA only from Border Field SP. Possibly threatened by trampling and Border Patrol activities. See Bulletin of the New York Botanical Garden 3:36 (1903) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 December 2024].