Biodiversity Institute of ontario. Year: 2012.   cc-by-nc-sa-3.0

Astragalus williamsii (Williams' Milkvetch) is a species of perennial herb in the family legumes. They are native to Canada and Alaska. Individuals can grow to 4 dm.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of Williams' milkvetch. View this species on GBIF