Species Details

Dirca occidentalis

western leatherwood

  Download Report   Calflora     eFlora     CCH     CalPhotos
Photo of Dirca occidentalis
© 2017 Steve Matson
Photo of Dirca occidentalis
© 2004 David A. Tharp
Photo of Dirca occidentalis
© 2015 Neal Kramer
Scientific Name:
Dirca occidentalis Gray
Common Name:
western leatherwood
Family: Thymelaeaceae
Element Code: PDTHY03010
USDA Plants Symbol: DIOC3
Synonyms/Other Names:
Lifeform: perennial deciduous shrub
Blooming Period: Jan-Mar(Apr)
Elevation:
25 - 425 meters
80 - 1395 feet
General Habitat:
  • Broadleafed upland forest
  • Closed-cone coniferous forest
  • Chaparral
  • Cismontane woodland
  • North Coast coniferous forest
  • Riparian forest
  • Riparian woodland
General Micro Habitat:
Micro Habitat:
  • Mesic
Notes:
Threats:

Possibly threatened by road and trail maintenance. Populations declining; not reproducing well.

Taxonomy:
Other:
Total Occurrences: 91
Element Occurrence Ranks:
A B C D X U
10 26 9 2 0 44
Occurrence Status:
Historical >20 Years 20
Recent <=20 Years 71
Presence:
Presumed Extant 91
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Alameda (ALA), Contra Costa (CCA), Marin (MRN), San Mateo (SMT), Santa Clara (SCL), Sonoma (SON)
Quads: Name (Quad Code)
Benicia (3812212), Bodega Head (3812331), Bolinas (3712286), Briones Valley (3712282), Cupertino (3712231), Inverness (3812217), La Honda (3712233), Los Gatos (3712128), Mindego Hill (3712232), Montara Mountain (3712254), Oakland East (3712272), Palo Alto (3712242), Richmond (3712283), San Geronimo (3812216), San Mateo (3712253), San Rafael (3712285), Valley Ford (3812238), Woodside (3712243)
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.

Map

Presumed Extant
Counties   Quads