Taxon Details
Astragalus tener var. ferrisiae
Ferris' milk-vetch
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Taxon Summary:
Astragalus tener var. ferrisiae, commonly known as Ferris' milk-vetch, is a annual herb in the Fabaceae that is found only in California. It occurs within Meadows and seeps (vernally mesic), and Valley and foothill grassland (subalkaline flats), growing at elevations from 2 to 75 meters. Astragalus tener var. ferrisiae is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Astragalus tener Gray var. ferrisiae Liston |
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Common Name: Ferris' milk-vetch |
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| Family: | Fabaceae | |
| Element Code: | PDFAB0F8R3 | |
| USDA Plants Symbol: | ASTEF | |
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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: | G2T1 |
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State Rank: |
S1 |
| Other Status: | BLM_S |
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CRPR Changes: |
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| Add Date: | 1994-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-May
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Elevation:
2 - 75 meters 5 - 245 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: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 8 | 44 % |
| THREAT LIST: | ||
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| Agriculture | 6 | 33% |
| Grazing | 2 | 11% |
| Non-native plant impacts | 1 | 5% |
| Other | 1 | 5% |
| Surface water diversion | 1 | 5% |
| Total Occurrences: | 18 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 0 | 0 | 1 | 5 | 11 |
| Occurrence Status: | |||||
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| Historical >20 Years | 17 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 13 | ||||
| Possibly Extirpated | 5 | ||||
| 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) Butte (BUT), Colusa (COL), Glenn (GLE), Solano (SOL)*, Sutter (SUT), Yolo (YOL), Yuba (YUB) |
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Quads: Name (Quad Code) Arbuckle (3912211)*, Butte City (3912148), Colusa (3912221)*, Davis (3812156), Dozier (3812137)*, Dunnigan (3812188)*, Grimes (3912118), Llano Seco (3912158), Logandale (3912242), Manor Slough (3912223), Merritt (3812157), Nord (3912178)*, Olivehurst (3912115), Pennington (3912137), Sacramento West (3812155), Saxon (3812146), Sutter (3912126), West of Biggs (3912147), Wildwood School (3812281), Yuba City (3912125)* |
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Notes:
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Presumed Extant
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