Taxon Details
Centromadia parryi ssp. australis
southern tarplant
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Taxon Summary:
Centromadia parryi ssp. australis, commonly known as southern tarplant, is a annual herb in the Asteraceae that is found in California and elsewhere. It occurs within Marshes and swamps (margins), Valley and foothill grassland (vernally mesic), and Vernal pools, growing at elevations from 0 to 480 meters. Centromadia parryi ssp. australis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Centromadia parryi (Greene) Greene ssp. australis (Keck) B.G. Baldwin |
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Common Name: southern tarplant |
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| Family: | Asteraceae | |
| Element Code: | PDAST4R0P4 | |
| USDA Plants Symbol: | CEPAA | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3T2 |
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State Rank: |
S2 |
| Other Status: | SB_CalBG/RSABG; SB_CRES; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1994-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: May-Nov
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Elevation:
0 - 480 meters 0 - 1575 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Need confirmation of SCT Isl. occurrences. Many ORA Co. occurrences recently extirpated. Many historical occurrences also extirpated; need information. Population fragmentation a serious problem, and plant continues to be threatened by urbanization, vehicles, development, foot traffic, grazing, habitat disturbance, and competition from non-native plants. A synonym of Hemizonia parryi ssp. australis in TJM (1993). See Madroño 3(1):15 (1935) for original description, and Novon 9:462-471 (1999) for revised nomenclature. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 16 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 43 | 46 % |
| THREAT LIST: | ||
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| Development | 20 | 21% |
| Other | 14 | 14% |
| Foot traffic/trampling | 11 | 11% |
| Road/trail construction/maint. | 10 | 10% |
| Non-native plant impacts | 7 | 7% |
| ORV activity | 6 | 6% |
| Disking | 6 | 6% |
| Recreational use (non-ORV) | 5 | 5% |
| Vandalism/dumping/litter | 4 | 4% |
| Agriculture | 3 | 3% |
| Grazing | 3 | 3% |
| Waterway bank protection/maintenance | 2 | 2% |
| Wood cutting or brush clearing | 1 | 1% |
| Hybridization | 1 | 1% |
| Military operations | 1 | 1% |
| Mining | 1 | 1% |
| Total Occurrences: | 94 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 3 | 17 | 11 | 4 | 10 | 49 |
| Occurrence Status: | |||||
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| Historical >20 Years | 58 | ||||
| Recent <=20 Years | 36 | ||||
| Presence: | |||||
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| Presumed Extant | 84 | ||||
| Possibly Extirpated | 4 | ||||
| Presumed Extirpated | 6 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) Los Angeles (LAX), Orange (ORA), San Diego (SDG), Santa Barbara (SBA), Ventura (VEN) |
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Quads: Name (Quad Code) Anaheim (3311778), Baldwin Park (3411718), Beverly Hills (3411814)*, Canada Gobernadora (3311755), Del Mar (3211782), Dos Pueblos Canyon (3411948), El Monte (3411811), Escondido (3311711), Goleta (3411947), Hollywood (3411813)*, Inglewood (3311883)*, Laguna Beach (3311757), Long Beach (3311872)*, Los Alamitos (3311871), Morro Hill (3311733), Mt. Wilson (3411821), Newbury Park (3411828), Newport Beach (3311768), Orange (3311777), Pasadena (3411822)*, Pitas Point (3411934)(?), San Marcos (3311722), San Pasqual (3311618), Santa Catalina East (3311833)?, Seal Beach (3311861), South Gate (3311882)*, Sunland (3411833), Torrance (3311873), Tustin (3311767), Valley Center (3311721), Venice (3311884)* |
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Notes:
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Presumed Extant
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