Taxon Details
Atriplex tularensis
Bakersfield smallscale
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Taxon Summary:
Atriplex tularensis, commonly known as Bakersfield smallscale, is a annual herb in the Chenopodiaceae that is found only in California. It occurs within Chenopod scrub, growing at elevations from 90 to 200 meters. Atriplex tularensis is ranked 1A, Plants Presumed Extirpated in California and Either Rare or Extinct Elsewhere.|
Scientific Name: Atriplex tularensis Cov. |
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Common Name: Bakersfield smallscale |
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| Family: | Chenopodiaceae | |
| Element Code: | PDCHE04240 | |
| USDA Plants Symbol: | ATTU | |
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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: | 1A |
| Fed List: | None |
| State List: | CE (1987-01-01) |
| Global Rank: | GX |
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State Rank: |
SX |
| Other Status: | |
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CRPR Changes: changed from 1B.1 to 1A on 2011-04-20 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2023-11-08 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Jun-Oct
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Elevation:
90 - 200 meters 295 - 655 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Two historical occurrences extirpated by agriculture; only remaining occurrence at Kern Lake Preserve is presumed extirpated and is likely an undescribed form of A. serenana, not A. tularensis as previously thought. See Contributions from the U.S. National Herbarium 4:182 (1893) for original description, and Fremontia 19(2):15-18 (1991) for species account and discussion of management. |
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Threats: Threatened by habitat loss, lowering of water table, and hybridization with A. serenana. |
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Taxonomy: |
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| Threat List Total: | 4 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 3 | 100 % |
| THREAT LIST: | ||
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| Agriculture | 3 | 100% |
| Groundwater pumping | 1 | 33% |
| Hybridization | 1 | 33% |
| Other | 1 | 33% |
| Total Occurrences: | 3 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 3 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 0 | ||||
| Presence: | |||||
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| Presumed Extant | 0 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 3 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Kern (KRN)* |
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Quads: Name (Quad Code) Coal Oil Canyon (3511911)?*, Gosford (3511931)*, Lamont (3511838), Weed Patch (3511828)* |
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Notes:
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Presumed Extant
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