Taxon Report

Dudleya abramsii Rose ssp. setchellii (Jeps.) Morin

Santa Clara Valley dudleya

Print Report


  Classification
Scientific Name:
 Dudleya abramsii Rose ssp. setchellii (Jeps.) Morin
Common Name:
 Santa Clara Valley dudleya
Family: Crassulaceae
Element Code: PDCRA040Z0
USDA Plants Symbol:
Synonyms/Other Names:
  • Dudleya setchellii

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Apr-Oct Apr-Oct
Elevation: 60-535 (195-1755)
General Habitats: Cismontane woodland, Valley and foothill grassland
Microhabitat: Rocky, Serpentine
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G4T2
State Rank:
 S2
State List: None
Fed List: FE
Other Status: SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 60
Element Occurrence Ranks:
   Excellent (A) 16
   Good (B) 23
   Fair (C) 7
   Poor (D) 3
   None (X) 0
   Unknown (U) 11

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Clara (SCL)
Quads: Name (Quad Code)
Gilroy (3712115), Gilroy Hot Springs (3712114), Lick Observatory (3712136), Los Gatos (3712128), Mississippi Creek (3712124), Morgan Hill (3712126), Mt. Madonna (3712116), Mt. Sizer (3712125), Pacheco Peak (3712113), San Jose East (3712137), Santa Teresa Hills (3712127)

Threat List Data from the CNDDB

Threat List Total: 18
EOs with Threat Listed: Total EOs % of EOs
47 78 %
Development 18 30%
Non-native plant impacts 17 28%
Grazing 14 23%
Road/trail construction/maint. 8 13%
Other 5 8%
ORV activity 4 6%
Foot traffic/trampling 4 6%
Erosion/runoff 3 5%
Feral pigs 2 3%
Improper burning regime 2 3%
Insufficient population/stand size 2 3%
Recreational use (non-ORV) 2 3%
Mining 2 3%
Waterway bank protection/maintenance 2 3%
Vandalism/dumping/litter 1 1%
Landfill 1 1%
Hybridization 1 1%
Biocides 1 1%

Notes
Threatened by urbanization, development, vehicles, non-native plants, and grazing.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].