Taxon Report
Centromadia pungens (H. & A.) Greene ssp. laevis (Keck) B.G. Baldwinsmooth tarplant |
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Classification
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Scientific Name: |
Centromadia pungens (H. & A.) Greene ssp. laevis (Keck) B.G. Baldwin |
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Common Name: |
smooth tarplant |
| Family: | Asteraceae |
| Element Code: | PDAST4R0R4 |
| USDA Plants Symbol: | CEPUL |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-Sep | Apr-Sep |
| Elevation: | 0-640 (0-2100) |
| General Habitats: | Chenopod scrub, Meadows and seeps, Playas, Riparian woodland, Valley and foothill grassland |
| Microhabitat: | Alkaline |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G3G4T2 |
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State Rank: |
S2 |
| State List: | None |
| 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: | 137 |
| Element Occurrence Ranks: | |
| Excellent (A) | 2 |
| Good (B) | 13 |
| Fair (C) | 25 |
| Poor (D) | 9 |
| None (X) | 14 |
| Unknown (U) | 74 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD), San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Alberhill (3311764), Anza (3311656), Bachelor Mtn. (3311751), Beaumont (3311688), Bonsall (3311732), Borrego Sink (3311623)*, Corona North (3311785), El Cajon (3211678)*, El Casco (3311781), Escondido (3311711), Harrison Mtn. (3411722)*, Hemet (3311668), Lake Elsinore (3311763), Lake Mathews (3311774), Lakeview (3311771), Las Pulgas Canyon (3311734), Morro Hill (3311733), Murrieta (3311752), Oceanside (3311724)*, Pasadena (3411822), Perris (3311772), Prado Dam (3311786), Redlands (3411712), Riverside East (3311783), Romoland (3311762), San Bernardino North (3411723), San Bernardino South (3411713)*, San Jacinto (3311678), San Luis Rey (3311723)*, San Pasqual (3311618), San Pedro (3311863), Steele Peak (3311773), Sunnymead (3311782), Temecula (3311742), Torrance (3311873), Warners Ranch (3311626), Wildomar (3311753), Winchester (3311761) | |
Threat List Data from the CNDDB
| Threat List Total: | 15 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 77 | 56 % | |
| Development | 45 | 32% |
| Other | 24 | 17% |
| Agriculture | 20 | 14% |
| Disking | 18 | 13% |
| Road/trail construction/maint. | 16 | 11% |
| Grazing | 13 | 9% |
| ORV activity | 10 | 7% |
| Altered flood/tidal/hydrologic regime | 9 | 6% |
| Non-native plant impacts | 6 | 4% |
| Dam/Inundation | 5 | 3% |
| Vandalism/dumping/litter | 2 | 1% |
| Wood cutting or brush clearing | 1 | 0% |
| Recreational use (non-ORV) | 1 | 0% |
| Channelization | 1 | 0% |
| Foot traffic/trampling | 1 | 0% |
Notes
| Many historical occurrences may be extirpated; need information. Frequently confused with other Centromadia species such as C. parryi ssp. australis in ORA, LAX, and SDG cos., and C. pungens ssp. pungens in KRN Co. Need historical quads for ORA Co. Threatened by foot traffic, agriculture, road maintenance, disking, urbanization, hydrological alterations, and flood control projects. A synonym of Hemizonia pungens ssp. laevis in TJM (1993). See Madroño 3:14 (1935) 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 27 December 2024].