Species Details

Deinandra minthornii

Santa Susana tarplant

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Scientific Name:
Deinandra minthornii (Jeps.) B.G. Baldwin
Common Name:
Santa Susana tarplant
Family: Asteraceae
Element Code: PDAST4R0J0
USDA Plants Symbol: DEMI4
Synonyms/Other Names:
Lifeform: perennial deciduous shrub
Blooming Period: Jul-Nov
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Elevation:
280 - 760 meters
920 - 2495 feet
General Habitats:
  • Chaparral
  • Coastal scrub
Microhabitat Details:
Microhabitat:
  • Rocky
Notes:
Threatened by development. Possibly threatened by non-native plants. State-listed as Hemizonia minthornii; see this name in The Jepson Manual. See Manual of the Flowering Plants of California, p. 1092 (1925) by W.L. Jepson for original description, and Novon 9:462-471 (1999) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 10
Total EOs % of EOs
EOs with Threat Listed: 19 50 %
THREAT LIST:
Development 12 31%
Road/trail construction/maint. 6 15%
Wood cutting or brush clearing 5 13%
Recreational use (non-ORV) 4 10%
Foot traffic/trampling 3 7%
Total Occurrences: 38
Element Occurrence Ranks:
A B C D X U
6 11 3 0 0 18
Occurrence Status:
Historical >20 Years 17
Recent <=20 Years 21
Presence:
Presumed Extant 38
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Ventura (VEN)
Quads: Name (Quad Code)
Calabasas (3411826), Canoga Park (3411825), Malibu Beach (3411816), Oat Mountain (3411835), Point Dume (3411817), Santa Susana (3411836), Thousand Oaks (3411827), Topanga (3411815), Triunfo Pass (3411818)
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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