About Lomatium macrocarpum (Hook. & Arn.) J.M.Coult. & Rose
Lomatium macrocarpum (Hook. & Arn.) J.M.Coult. & Rose is a perennial flowering plant in the carrot family. It has the common names bigseed lomatium, biscuit root, and bigseed biscuitroot. This species is native to a large portion of western North America, where it grows in many different habitat types. This includes the grasslands of the Great Plains, and it occurs particularly often in rocky areas. It is a spreading or erect perennial herb that grows up to around half a meter in length, and has hairy, gray-green foliage. Its grayish basal leaves reach up to approximately 24 centimeters (9.4 inches) long, and are intricately divided into many small, narrow segments. Its inflorescence produces an umbel of flowers that can be yellowish, greenish, purplish, or white, and the inflorescence grows from a lateral stem. The fruit is a compressed, winged, round or oval disc that grows up to about 2 centimeters long. This plant has tuberous roots that have been processed into flour.