Species Details

Dudleya densiflora

San Gabriel Mountains dudleya

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Scientific Name:
Dudleya densiflora (Rose) Moran
Common Name:
San Gabriel Mountains dudleya
Family: Crassulaceae
Element Code: PDCRA040B0
USDA Plants Symbol: DUDE2
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Mar-Jul
JFMAMJJASOND
Elevation:
244 - 610 meters
800 - 2000 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Coastal scrub
  • Lower montane coniferous forest
  • Riparian woodland
Microhabitat Details: cliffs and canyon walls
Microhabitat:
  • Granitic
Notes:
Known only from six extant occurrences. Threatened by mining and development. Possibly threatened by horticultural collecting.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 5 56 %
THREAT LIST:
Mining 4 44%
Over-collecting/poaching 3 33%
Recreational use (non-ORV) 2 22%
Road/trail construction/maint. 1 11%
Improper burning regime 1 11%
Total Occurrences: 9
Element Occurrence Ranks:
A B C D X U
1 3 1 0 0 4
Occurrence Status:
Historical >20 Years 7
Recent <=20 Years 2
Presence:
Presumed Extant 9
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), Glendora (3411727)
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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