Taxon Report

Dudleya alainae Reiser

Banner dudleya

Print Report

Taxon Summary

Dudleya alainae, commonly known as Banner dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, Lower montane coniferous forest, and Sonoran desert scrub, growing at elevations from 740 to 1200 meters. Dudleya alainae is ranked 3.2, Plants About Which We Need More Information, A Review List; Moderately threatened in California.

Classification


Scientific Name:	Dudleya alainae Reiser
Common Name:	Banner dudleya
Family:	Crassulaceae
Element Code:	PDCRA040X0
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Apr-Jul	Apr-Jul
Elevation:	740-1200 (2430-3935)
General Habitats:	Chaparral, Lower montane coniferous forest, Sonoran desert scrub
Microhabitat:	Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	3.2
Global Rank:	G2Q
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_CRES
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Earthquake Valley (3311614), Julian (3311615), Pala (3311731), Ranchita (3311625), Santa Ysabel (3311616)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Move to CRPR 1B? A synonym of D. saxosa ssp. aloides in TJM (1993) and TJM 2. See Cactus and Succulent Journal 56:147-148 (1984) for original description. Threatened by development and non-native plants. Taxonomic questions remain unanswered by treatment in Cactus and Succulent Journal 58:111-115 (1986); critical evaluation needed.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 October 2025].