The New Mexico bird's-foot trefoil (Acmispon oroboides) belongs to Fabaceae (the Pea family). It is a perennial herb that is native from east Nevada to far west Texas in the United States. This herb grows in open, sandy locations, usually in light woodlands, and up to a height of 15 cm. The stems are branched and decumbent or lie along the ground, have a covering of appressed hairs, and reach lengths of up to 40 cm. The leaves are divided into between three and six narrow leaflets, appearing palmate from a distance. The leaflet tips may be rounded or pointed. The yellow papillionaceous flowers bloom from March to September. The five sepals are divided at the tip into up to three narrow lobes. The fruit is a narrow, strigose seed pods which straight to curved, around 2.5 cm long.