Species Details

Dudleya cymosa ssp. crebrifolia

San Gabriel River dudleya

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Species Description:

Dudleya cymosa ssp. crebrifolia, commonly known as San Gabriel River dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, growing at elevations from 275 to 457 meters. Dudleya cymosa ssp. crebrifolia is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Scientific Name:
Dudleya cymosa (Lem.) Britt. & Rose ssp. crebrifolia K. Nakai & Verity
Common Name:
San Gabriel River dudleya
Family: Crassulaceae
Element Code: PDCRA040A8
USDA Plants Symbol: DUCYC2
Synonyms/Other Names:
Name Status: JEP, FNA, POWO,
IPNI, Tropicos
Lifeform: perennial herb
Blooming Period: Apr-Jul
JFMAMJJASOND
Elevation:
275 - 457 meters
900 - 1500 feet
General Habitats:
  • Chaparral (granitic)
Microhabitat Details:
Microhabitat:
Notes:
Known only from the type locality along the San Gabriel River. Threatened by mining. See Madroño 34(4):334-353 (1987) for original description.
Threats:
Taxonomy:
Threat List Total: 2
Total EOs % of EOs
EOs with Threat Listed: 1 17 %
THREAT LIST:
Erosion/runoff 1 16%
Road/trail construction/maint. 1 16%
Total Occurrences: 6
Element Occurrence Ranks:
A B C D X U
2 0 0 0 0 4
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 6
Presence:
Presumed Extant 6
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX)
Quads: Name (Quad Code)
Azusa (3411728), Crystal Lake (3411737)
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.
Presumed Extant
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