Taxon Report
Deinandra bacigalupii B.G. BaldwinLivermore tarplant |
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Taxon Summary
Deinandra bacigalupii, commonly known as Livermore tarplant, is a annual herb in the Asteraceae that is found only in California. It occurs within Meadows and seeps, growing at elevations from 150 to 185 meters. Deinandra bacigalupii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Deinandra bacigalupii B.G. Baldwin |
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Common Name: |
Livermore tarplant |
| Family: | Asteraceae |
| Element Code: | PDAST4R0V0 |
| USDA Plants Symbol: | DEBA10 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Jun-Oct | Jun-Oct |
| Elevation: | 150-185 (490-605) |
| General Habitats: | Meadows and seeps |
| Microhabitat: | |
| 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: | None |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 4 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 2 |
| Fair (C) | 0 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 1 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Alameda (ALA) | |
| Quads: Name (Quad Code) | |
| Altamont (3712166) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 4 | 100 % | |
| Development | 4 | 100% |
| Disking | 1 | 25% |
| Foot traffic/trampling | 1 | 25% |
| Grazing | 1 | 25% |
| Non-native plant impacts | 1 | 25% |
| ORV activity | 1 | 25% |
| Other | 1 | 25% |
| Vandalism/dumping/litter | 1 | 25% |
| Agriculture | 1 | 25% |
| Biocides | 1 | 25% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 October 2025].