Taxon Details
Plagiobothrys hystriculus
bearded popcornflower
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© 2006 Robert E. Preston |
© 2006 Robert E. Preston |
© 2007 Carol W. Witham |
Taxon Summary:
Plagiobothrys hystriculus, commonly known as bearded popcornflower, is a annual herb in the Boraginaceae that is found only in California. It occurs within Valley and foothill grassland (mesic), and Vernal pools (margins), growing at elevations from 0 to 274 meters. Plagiobothrys hystriculus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Plagiobothrys hystriculus (Piper) Jtn. |
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Common Name: bearded popcornflower |
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| Family: | Boraginaceae | |
| Element Code: | PDBOR0V0H0 | |
| USDA Plants Symbol: | PLHY | |
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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: | G2 |
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State Rank: |
S2 |
| Other Status: | |
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CRPR Changes: changed from 1A to 1B.1 on 2006-06-08 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2025-09-09 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-May
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Elevation:
0 - 274 meters 0 - 900 feet |
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General Habitats:
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| Microhabitat Details: often vernal swales | ||||||||||||||
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Microhabitat:
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Notes: Rediscovered in 2005 by B. Schafer, M. Widdowson, and R. Preston; last seen in 1892. Easily confused with P. acanthocarpus, P. trachycarpus, and other Plagiobothrys taxa. See Madroño 57(4):242-245 (2010) for discussion of rediscovery. |
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Threats: Threatened by disking, development, and non-native plants. |
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Taxonomy: See Contributions of the U.S. National Herbarium 22:79-113 (1920) for original description and Contributions from the Arnold Arboretum 3:5-82 (1932) for revised nomenclature. |
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| Threat List Total: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 6 | 40 % |
| THREAT LIST: | ||
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| Non-native plant impacts | 3 | 20% |
| Other | 2 | 13% |
| Disking | 2 | 13% |
| Development | 1 | 6% |
| Road/trail construction/maint. | 1 | 6% |
| Total Occurrences: | 15 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 3 | 3 | 1 | 0 | 0 | 8 |
| Occurrence Status: | |||||
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| Historical >20 Years | 4 | ||||
| Recent <=20 Years | 11 | ||||
| Presence: | |||||
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| Presumed Extant | 15 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Napa (NAP), Solano (SOL), Yolo (YOL) |
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Quads: Name (Quad Code) Allendale (3812148), Antioch North (3812117), Birds Landing (3812127), Denverton (3812128), Dozier (3812137), Elmira (3812138), Knoxville (3812273), Saxon (3812146) |
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Notes:
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Presumed Extant
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