Taxon Report

Dudleya nesiotica (Moran) Moran

Santa Cruz Island dudleya

Print Report

Classification


Scientific Name:	Dudleya nesiotica (Moran) Moran
Common Name:	Santa Cruz Island dudleya
Family:	Crassulaceae
Element Code:	PDCRA040J0
USDA Plants Symbol:	DUNE
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	10-50 (35-165)
General Habitats:	Coastal bluff scrub, Coastal scrub
Microhabitat:	Clay, Gravelly (sometimes), Rocky (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	CR
Fed List:	FD
Other Status:	SB_CalBG/RSABG; SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	2
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Santa Cruz Island A (3311987)

Threat List Data from the CNDDB


Threat List Total:	3
EOs with Threat Listed:	Total EOs	% of EOs
	1	50 %
Erosion/runoff	1	50%
Non-native plant impacts	1	50%
Road/trail construction/maint.	1	50%

Notes



Known from only one occurrence near Frasier Pt. Threatened by non-native plants, erosion, and habitat degradation. Possibly threatened by climate change. See Desert Plant Life 22:99 (1951) 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 27 December 2024].