CNPS Inventory Plant Detail

Dudleya abramsii ssp. affinis

Common Name:	San Bernardino Mountains dudleya
Family:	Crassulaceae
Synonyms:
Element Code:	PDCRA04013
Full Name:	Dudleya abramsii Rose ssp. affinis K. Nakai
USDA PLANTS Symbol:	DUABA2

Biology
Lifeform: perennial herb Blooming Period: April - July Habitat: granitic, quartzite, or carbonate. • Pebble (Pavement) plain • Pinyon and juniper woodland • Upper montane coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G3T2 T2: Imperiled. G3: (species) Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 53
Element Occurrence Ranks:

A B C D X U

0 7 1 0 0 45

Population Status:

Historic >20 yrs	Recent <=20 yrs
6	47

Presence:

Present Extant	Possibly Extirpated	Extirpated
53	0	0

Notes

Known only from the San Bernardino Mtns. Threatened by development, foot traffic, limestone mining, and vehicles. Possibly threatened by non-native plants and illegal dumping. See Madroño 34(4):349 (1987) for original description.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1988-01-01
Last Update: 2012-05-15

Location

Elevation: 1250 - 2600 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
San Bernardino (SBD)

Quads: name (DWR code) USGS code
Onyx Peak (104B) 34116B6, Moonridge (105A) 34116B7, Rattlesnake Canyon (130C) 34116C6, Fawnskin (131C) 34116C8, Big Bear City (131D) 34116C7, Apple Valley South (132B) 34117D2, Lake Arrowhead (132C) 34117C2, Butler Peak (132D) 34117C1

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

139

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-116.875,34.25