Taxon Report
Pseudobahia peirsonii MunzSan Joaquin adobe sunburst |
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Classification
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Scientific Name: |
Pseudobahia peirsonii Munz |
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Common Name: |
San Joaquin adobe sunburst |
| Family: | Asteraceae |
| Element Code: | PDAST7P030 |
| USDA Plants Symbol: | PSPE |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Feb-Apr | Feb-Apr |
| Elevation: | 90-800 (295-2625) |
| General Habitats: | Cismontane woodland, Valley and foothill grassland |
| Microhabitat: | Adobe, Clay |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | CE |
| Fed List: | FT |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 51 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 11 |
| Fair (C) | 13 |
| Poor (D) | 9 |
| None (X) | 10 |
| Unknown (U) | 7 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Kern (KRN), Tulare (TUL) | |
| Quads: Name (Quad Code) | |
| Chickencoop Canyon (3611838), Ducor (3511981)*, Fountain Springs (3511888), Frazier Valley (3611828), Lindsay (3611921)*, Oiler Peak (3511835), Orange Cove South (3611953), Pine Mountain (3511857), Porterville (3611911), Quincy School (3511878), Reedley (3611954)*, Richgrove (3511971), Rio Bravo Ranch (3511847), Rocky Hill (3611931)*, Round Mountain (3611975), Sand Canyon (3511868), Stokes Mtn. (3611952), Success Dam (3611818), Tejon Hills (3511817), Tejon Ranch (3511816), Tulare (3611923)*, Wahtoke (3611964), White River (3511877), Woodlake (3611941), Woody (3511867)* | |
Threat List Data from the CNDDB
| Threat List Total: | 16 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 48 | 94 % | |
| Grazing | 34 | 66% |
| Agriculture | 21 | 41% |
| Non-native plant impacts | 15 | 29% |
| Development | 14 | 27% |
| Road/trail construction/maint. | 13 | 25% |
| Foot traffic/trampling | 8 | 15% |
| Other | 7 | 13% |
| Disking | 7 | 13% |
| Erosion/runoff | 7 | 13% |
| Biocides | 5 | 9% |
| Mining | 4 | 7% |
| Dam/Inundation | 3 | 5% |
| Recreational use (non-ORV) | 3 | 5% |
| ORV activity | 1 | 1% |
| Surface water diversion | 1 | 1% |
| Altered flood/tidal/hydrologic regime | 1 | 1% |
Notes
| More than half of known occurrences are very small. Seriously threatened by agriculture, grazing, development, non-native plants, road construction and maintenance, and flood control activities. Possibly threatened by road maintenance. See Aliso 2:84 (1949) for original description. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].