Species Details

Malacothamnus davidsonii

Davidson's bush-mallow

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Photo by © 2016 Keir Morse  max-height:128px; max-width:145px;
© 2016 Keir Morse
Photo by © 2016 Keir Morse  max-height:128px; max-width:145px;
© 2016 Keir Morse
Photo by © 2006 Gabi McLean  max-height:128px; max-width:145px;
© 2006 Gabi McLean
Scientific Name:
Malacothamnus davidsonii (Rob.) Greene
Common Name:
Davidson's bush-mallow
Family: Malvaceae
Element Code: PDMAL0Q040
USDA Plants Symbol: MADA
Synonyms/Other Names:
Lifeform: perennial deciduous shrub
Blooming Period: Jun-Jan
Elevation:
185 - 1140 meters
605 - 3740 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
  • Coastal scrub
  • Riparian woodland
General Micro Habitat:
Micro Habitat:
Notes:
Threatened by urbanization in LAX Co. Potentially threatened by development, maintenance activities and erosion. Intergrades with M. fasciculatus; see MadroƱo 46(3):142-152 (1999) for information.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 83
Element Occurrence Ranks:
A B C D X U
6 13 13 1 2 48
Occurrence Status:
Historical >20 Years 22
Recent <=20 Years 61
Presence:
Presumed Extant 81
Possibly Extirpated 1
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Kern (KRN), Los Angeles (LAX), Monterey (MNT), San Luis Obispo (SLO), Ventura (VEN)
Quads: Name (Quad Code)
Acton (3411842), Apache Canyon (3411973), Bear Canyon (3612113), Bradley (3512077), Bryson (3512171), Burbank (3411823), Burnett Peak (3512172), Condor Peak (3411832), Cosio Knob (3612112), Cuyama Peak (3411974), Hames Valley (3512088), Jolon (3512182), Lion Canyon (3411952), Lockwood Valley (3411961), Pacifico Mountain (3411841), San Fernando (3411834), Sunland (3411833), Sycamore Flat (3612134), Thompson Canyon (3612122), Tierra Redonda Mountain (3512078), Topatopa Mountains (3411951), Van Nuys (3411824), Wheeler Springs (3411953), Williams Hill (3512181)
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