Taxon Report
Astragalus rattanii Gray var. rattaniiRattan's milk-vetch |
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Taxon Summary
Astragalus rattanii var. rattanii, commonly known as Rattan's milk-vetch, is a perennial herb in the Fabaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 30 to 825 meters. Astragalus rattanii var. rattanii is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.Classification
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Scientific Name: |
Astragalus rattanii Gray var. rattanii |
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Common Name: |
Rattan's milk-vetch |
| Family: | Fabaceae |
| Element Code: | PDFAB0F7E2 |
| USDA Plants Symbol: | ASRAR3 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-Jul | Apr-Jul |
| Elevation: | 30-825 (100-2705) |
| General Habitats: | Chaparral, Cismontane woodland, Lower montane coniferous forest |
| Microhabitat: | Gravelly, Streambanks |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G4T4 |
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State Rank: |
S4 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Colusa (COL), Humboldt (HUM), Mendocino (MEN), Plumas (PLU), Trinity (TRI) | |
| Quads: Name (Quad Code) | |
| Arcata North (4012481), Black Lassic (4012335), Blake Mountain (4012355), Bluenose Ridge (3912382), Brushy Mtn. (3912352), Dinsmore (4012345), Dos Rios (3912363), Gualala (3812375), Hales Grove (3912377), Hull Mountain (3912258), Leggett (3912376), Mad River Buttes (4012367), Newhouse Ridge (3912371), Noble Butte (3912386), Scotia (4012441), Stover Mtn. (4012133), Thatcher Ridge (3912361), Wilbur Springs (3912214), Zenia (4012324) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Selected References
| Astragalus rattanii var. rattanii profile for potential Species of Conservation Concern evaluation (2018) |
| Systematic Botany 17(3):367-379 (1992) for distributional information |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].