Taxon Report
Pseudognaphalium leucocephalum (Gray) A. Anderb.white rabbit-tobacco |
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Species Description:
Pseudognaphalium leucocephalum, commonly known as white rabbit-tobacco, is a perennial herb in the Asteraceae that is found in California and elsewhere. It occurs within Chaparral, Cismontane woodland, Coastal scrub, and Riparian woodland, growing at elevations from 0 to 2100 meters. Pseudognaphalium leucocephalum is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.
Classification
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Scientific Name: |
Pseudognaphalium leucocephalum (Gray) A. Anderb. |
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Common Name: |
white rabbit-tobacco |
| Family: | Asteraceae |
| Element Code: | PDAST440C0 |
| USDA Plants Symbol: | PSLE4 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: (Jul)Aug-Nov(Dec) | (Jul)Aug-Nov(Dec) |
| Elevation: | 0-2100 (0-6890) |
| General Habitats: | Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland |
| Microhabitat: | Gravelly, Sandy |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.2 |
| Global Rank: | G4 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 62 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 1 |
| Fair (C) | 1 |
| Poor (D) | 0 |
| None (X) | 2 |
| Unknown (U) | 58 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), Ventura (VEN) | |
| Quads: Name (Quad Code) | |
| Alberhill (3311764), Azusa (3411728), Baldwin Park (3411718), Black Star Canyon (3311776), Burbank (3411823), Camarillo (3411921), Canada Gobernadora (3311755), Condor Peak (3411832), Dana Point (3311746)?, El Cajon (3211678), Fallbrook (3311743), Fillmore (3411848), Glendora (3411727), Guasti (3411715), Hollywood (3411813)*, Lake Mathews (3311774), Margarita Peak (3311744)?, Morro Hill (3311733), Mt. Baldy (3411726), Mt. Wilson (3411821), Murrieta (3311752), Newhall (3411845), Ontario (3411716), Oxnard (3411922), Pasadena (3411822)?, Pechanga (3311741), Piru (3411847), Prado Dam (3311786)?, San Clemente (3311745), San Dimas (3411717), San Jacinto (3311678), San Juan Capistrano (3311756), Santa Paula (3411931), Saticoy (3411932), Sitton Peak (3311754), Temecula (3311742), Vail Lake (3311648), Val Verde (3411846), Warm Springs Mountain (3411855), Whitaker Peak (3411856) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 7 | 11 % | |
| Development | 3 | 4% |
| Non-native plant impacts | 2 | 3% |
| Recreational use (non-ORV) | 2 | 3% |
| Wood cutting or brush clearing | 1 | 1% |
| Erosion/runoff | 1 | 1% |
| Altered flood/tidal/hydrologic regime | 1 | 1% |
Notes
| Occurrences from VEN Co. need verification. Many collections old; need field surveys. Threatened by non-native plants, recreational activities, an hydrological alterations. In TJM (1993) as Gnaphalium leucocephalum. See Smithsonian Contributions to Knowledge 5(6): 99 (1853) for original description and Opera Botanica 104: 147 (1991) for revised nomenclature. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2006-11-03 |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 15 January 2025].