Lotus argyraeus is a species of legume known by the common name canyon bird's-foot trefoil. It is native southern California, Nevada, and Baja California, where it is known from dry mountain habitat. It is a perennial herb lined with leaves each made up of a few oval leaflike leaflets about 1 cm long. Most of the plant is silky-hairy in texture. The inflorescence holds one to three pinkish-yellow flowers roughly 1 cm long. The fruit is a dehiscent legume pod up to 2.5 cm long.
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