Description
Geyer's Biscuitroot is a glabrous, herbaceous perennial with 1-3 stems that are 15-40 cm tall. These stems arise from a tuberous-thickened taproot that is up to 4 cm in diameter. Leaves are 2-3 times pinnately divided into narrow ultimate segments and are borne on the lower half of the stem or sometimes only at the base. The smallest flower clusters consist of a number of stalked flowers attached at a single point (simple umbels); these clusters are, in turn, stalked and attached at a single point to form compound umbels. The small, leaf-like bracts of the simple umbels are 2-3 mm long. The small white flowers have 5 separate petals attached on top of the ovary. The glabrous fruits are compressed, elliptic in outline, and 7-12 mm long.