Astragalus whitneyi is a species of legume known by the common name balloon-pod milk-vetch, balloon milk-vetch, or Whitney's locoweed. It is a native to the Cascade Range and the Sierra Nevada (U.S.) and is unusual for its bright red or red-splotched balloon-like seedpods.

Varieties include:

• Astragalus whitneyi var. confusus
• Astragalus whitneyi var. siskiyouensis
• Astragalus whitneyi var. whitneyi

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