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humillimus (Mancos Milkvetch)
Fabaceae (Pea Family)
and sand openings. Spring.
This masterpiece is known only from a small area near Mesa Verde National Park. It grows in sands and gravels collected in the joints of large slabs of sandstone. It is as sweet to smell as it is enchantingly lovely to look at.
Asa Gray described this plant and Townshend Brandegee named it in 1876 after Brandegee found it "growing upon sandstone-rock of the Mesa Verde, near the edge of the Mancos Canon". After Brandegee recorded it in 1876, it was not found again until the 1970s. "Humillimus" means "very humble".
Range map © John Kartesz,
Species present in state and native
County Color Key
Species present and not rare
Range map for Astragalus humillimus