Taxon Details
Ambrosia chenopodiifolia
San Diego bur-sage
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© 2020 Keir Morse |
© 2020 Keir Morse |
© 2010 Anna Bennett |
Taxon Summary:
Ambrosia chenopodiifolia, commonly known as San Diego bur-sage, is a perennial shrub in the Asteraceae that is found in California and elsewhere. It occurs within Coastal scrub, growing at elevations from 55 to 155 meters. Ambrosia chenopodiifolia is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.|
Scientific Name: Ambrosia chenopodiifolia (Benth.) Payne |
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Common Name: San Diego bur-sage |
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| Family: | Asteraceae | |
| Element Code: | PDAST0C080 | |
| USDA Plants Symbol: | AMCH5 | |
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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: | 2B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G2G3 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_CRES |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-02-01 |
| Lifeform: perennial shrub | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
55 - 155 meters 180 - 510 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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| Threat List Total: | 10 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 15 | 71 % |
| THREAT LIST: | ||
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| Development | 11 | 52% |
| ORV activity | 6 | 28% |
| Vandalism/dumping/litter | 3 | 14% |
| Road/trail construction/maint. | 2 | 9% |
| Non-native plant impacts | 2 | 9% |
| Foot traffic/trampling | 2 | 9% |
| Grazing | 1 | 4% |
| Mining | 1 | 4% |
| Agriculture | 1 | 4% |
| Recreational use (non-ORV) | 1 | 4% |
| Total Occurrences: | 21 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 3 | 2 | 0 | 2 | 14 |
| Occurrence Status: | |||||
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| Historical >20 Years | 11 | ||||
| Recent <=20 Years | 10 | ||||
| Presence: | |||||
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| Presumed Extant | 19 | ||||
| Possibly Extirpated | 1 | ||||
| Presumed Extirpated | 1 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) San Diego (SDG) |
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Quads: Name (Quad Code) Imperial Beach (3211751), National City (3211761), Otay Mesa (3211658) |
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Notes:
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Presumed Extant
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