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Walker Pass milkvetch

Astragalus ertterae

Also called Ertter's Milk Vetch

Walker Pass milkvetch
Photo: Fletcher Linton, USFS botanist per [1], Public domain

Walker Pass milkvetch is a rare, hairy perennial herb in the pea family, endemic to a few sites near Walker Pass in California's southern Sierra Nevada. It is a threatened wild species rather than a garden plant, so cultivation advice is limited.

Family
Fabaceae (Pea & bean family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly once established, since it is adapted to dry mountain conditions.
Soil
Well-drained, gritty or sandy mineral soil.
Temperature
Tolerates cool mountain temperatures and seasonal cold; protect from prolonged heat and frost in containers.
How easy
Hard
Native range
California (Kern Co.)
Climate
temperate

About

Astragalus ertterae is a rare species of milkvetch known by the common name Walker Pass milkvetch. It is endemic to California, where it is known from only three occurrences near Walker Pass in the Sierra Nevada. It is endangered by trampling, trail use, and also grazing.

It is only found in the northeast corner of Kern county, in the Sierra Nevada. Its bloom period is April and May.

Other Astragalus plants

Astragalus aboriginum · Rogue River milkvetch · Sharp-leaved Milk Vetch · Sharpkeel milkvetch · Humboldt County milkvetch · Purple milkvetch · Cushenbury milkvetch · Astragalus alopecurus · Alpine milkvetch · Crescent milkvetch · Hermit Milkvetch · Anderson's milkvetch

Text excerpted from the Wikipedia article Astragalus ertterae by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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