Species Details
Dirca occidentalis
western leatherwood
View Report Copy Link CalFlora EFlora CCH CalPhotos iNaturalist
© 2017 Steve Matson |
© 2004 David A. Tharp |
© 2015 Neal Kramer |
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Scientific Name: Dirca occidentalis Gray |
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Common Name: western leatherwood |
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| Family: | Thymelaeaceae | |
| Element Code: | PDTHY03010 | |
| USDA Plants Symbol: | DIOC3 | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G2 |
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State Rank: |
S2 |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-06-08 |
| Lifeform: perennial deciduous shrub | ||||||||||||||
Blooming Period: Jan-Mar(Apr)
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Elevation:
25 - 425 meters 80 - 1395 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 13 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 34 | 37 % |
| THREAT LIST: | ||
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| Road/trail construction/maint. | 22 | 24% |
| Other | 13 | 14% |
| Non-native plant impacts | 11 | 12% |
| Foot traffic/trampling | 7 | 7% |
| Development | 5 | 5% |
| Wood cutting or brush clearing | 5 | 5% |
| Recreational use (non-ORV) | 2 | 2% |
| Grazing | 2 | 2% |
| Insufficient population/stand size | 1 | 1% |
| Logging | 1 | 1% |
| Erosion/runoff | 1 | 1% |
| Vandalism/dumping/litter | 1 | 1% |
| Waterway bank protection/maintenance | 1 | 1% |
| Total Occurrences: | 91 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 10 | 26 | 9 | 2 | 0 | 44 |
| Occurrence Status: | |||||
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| Historical >20 Years | 21 | ||||
| Recent <=20 Years | 70 | ||||
| Presence: | |||||
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| Presumed Extant | 91 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Alameda (ALA), Contra Costa (CCA), Marin (MRN), San Mateo (SMT), Santa Clara (SCL), Sonoma (SON) |
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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) |
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Notes:
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Presumed Extant
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