About Acmispon micranthus (Nutt. ex Torr. & A.Gray) Brouillet
Acmispon micranthus, a legume species, is native to California and northwestern Mexico. It is commonly known as San Diego bird's-foot trefoil. This plant occurs in the coastal mountain ranges of California and Baja California, growing in various types of scrub and canyon habitats. It is an annual herb that grows in either a spreading or upright form. Its stems are lined with leaves, each composed of oval leaflets that are roughly one centimeter long. Its inflorescence is a small cluster of red and yellow flowers. Each flower sits inside a tubular calyx of sepals and is only a few millimeters long. The fruit produced is a narrow, bent legume pod that can reach up to 1.5 centimeters in total length, including the hooked beak at its tip.