Astragalus canadensis is a common and widespread member of the milkvetch genus in the legume family, known commonly as Canadian milkvetch. The plant is found throughout Canada and the United States in many habitats including wetlands, woodlands, and prairies.

This species has three subspecies:

Astragalus canadensis var. canadensis native to eastern and central US, especially around a strip from Louisiana to Ontario.

Astragalus canadensis var. mortonii native to northwest US, especially eastern Washington and western Idaho.

Astragalus canadensis var. brevidens native to northwest US, including north California.

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