Astragalus eucosmus, commonly known as elegant milkvetch or pretty milkvetch, is a species of milkvetch in the legume family.
Astragalus eucosmus is found in a continuous distribution across almost every Canadian province and into the Rocky Mountains of the western United States.
Related to its widespread distribution, elegant milkvetch varies phenotypically based on the elevation it grows at; at higher elevations, it can appear stunted.