Taxon Report
Deinandra minthornii (Jeps.) B.G. BaldwinSanta Susana tarplant |
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Classification
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Scientific Name: |
Deinandra minthornii (Jeps.) B.G. Baldwin |
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Common Name: |
Santa Susana tarplant |
| Family: | Asteraceae |
| Element Code: | PDAST4R0J0 |
| USDA Plants Symbol: | DEMI4 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial deciduous shrub |
| Blooming Period: Jul-Nov | Jul-Nov |
| Elevation: | 280-760 (920-2495) |
| General Habitats: | Chaparral, Coastal scrub |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | CR |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 38 |
| Element Occurrence Ranks: | |
| Excellent (A) | 6 |
| Good (B) | 11 |
| Fair (C) | 3 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 18 |
| California Endemic: True | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 19 | 50 % | |
| 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% |
| Improper burning regime | 3 | 7% |
| Non-native plant impacts | 3 | 7% |
| Grazing | 2 | 5% |
| Vandalism/dumping/litter | 2 | 5% |
| Other | 1 | 2% |
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. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].