Taxon Details
Chorizanthe breweri
Brewer's spineflower
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Taxon Summary:
Chorizanthe breweri, commonly known as Brewer's spineflower, is a annual herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Closed-cone coniferous forest, and Coastal scrub, growing at elevations from 45 to 800 meters. Chorizanthe breweri is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.|
Scientific Name: Chorizanthe breweri Wats. |
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Common Name: Brewer's spineflower |
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| Family: | Polygonaceae | |
| Element Code: | PDPGN04050 | |
| USDA Plants Symbol: | CHBR2 | |
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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.3 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3 |
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State Rank: |
S3 |
| Other Status: | BLM_S; SB_SBBG; USFS_S |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Aug
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Elevation:
45 - 800 meters 150 - 2625 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Threatened by pipeline construction. Possibly threatened by road construction, road maintenance, and vehicles. Closely related to C. staticoides. See Proceedings of the American Academy of Arts and Sciences 12:270 (1877) for original description, and Phytologia 66(2):163-164 (1989) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 14 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 22 | 49 % |
| THREAT LIST: | ||
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| Grazing | 7 | 15% |
| Improper burning regime | 6 | 13% |
| Military operations | 6 | 13% |
| Feral pigs | 6 | 13% |
| Foot traffic/trampling | 6 | 13% |
| Non-native plant impacts | 6 | 13% |
| Other | 4 | 8% |
| Road/trail construction/maint. | 4 | 8% |
| Development | 3 | 6% |
| Erosion/runoff | 3 | 6% |
| Mining | 1 | 2% |
| Vandalism/dumping/litter | 1 | 2% |
| Recreational use (non-ORV) | 1 | 2% |
| ORV activity | 1 | 2% |
| Total Occurrences: | 45 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 9 | 8 | 3 | 0 | 0 | 25 |
| Occurrence Status: | |||||
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| Historical >20 Years | 27 | ||||
| Recent <=20 Years | 18 | ||||
| Presence: | |||||
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| Presumed Extant | 45 | ||||
| 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) Monterey (MNT), San Luis Obispo (SLO) |
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Quads: Name (Quad Code) Arroyo Grande NE (3512025), Atascadero (3512046), Burro Mountain (3512173), Lopez Mtn. (3512035), Morro Bay South (3512037), Pismo Beach (3512026), Port San Luis (3512027), San Luis Obispo (3512036), Santa Margarita (3512045), Santa Margarita Lake (3512034) |
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Notes:
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Presumed Extant
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