Taxon Details

Dudleya abramsii ssp. bettinae

Betty's dudleya

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Taxon Summary:

Dudleya abramsii ssp. bettinae, commonly known as Betty's dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, Coastal scrub, and Valley and foothill grassland, growing at elevations from 20 to 180 meters. Dudleya abramsii ssp. bettinae is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Dudleya abramsii Rose ssp. bettinae (Hoov.) J. Bartel
Common Name: Betty's dudleya
Family:	Crassulaceae
Element Code:	PDCRA04011
USDA Plants Symbol:	DUABB
Synonyms/Other Names: Dudleya bettinae Hoov.
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4T2
State Rank:	S2
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jul

Elevation:
20 - 180 meters
65 - 590 feet

General Habitats:

Chaparral
Coastal scrub
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Rocky
Serpentine

Notes

Notes: Known from fewer than ten occurrences. Possibly threatened by road construction. See Leaflets of Western Botany 10(11):186 (1965) for original description, and Phytologia 70(4):229-230 for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	9
	Total EOs	% of EOs
EOs with Threat Listed:	5	36 %
Grazing	2	14%
Development	2	14%
Road/trail construction/maint.	2	14%
Feral pigs	1	7%
Foot traffic/trampling	1	7%
Improper burning regime	1	7%
Military operations	1	7%
Non-native plant impacts	1	7%
Recreational use (non-ORV)	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					14
A	B	C	D	X	U
2	4	1	1	0	6

Occurrence Status:
Historical >20 Years	9
Recent <=20 Years	5

Presence:
Presumed Extant	14
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Luis Obispo (SLO)

Quads: Name (Quad Code)
Cayucos (3512048), Morro Bay North (3512047), Morro Bay South (3512037), Pismo Beach (3512026), San Luis Obispo (3512036)

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