About Osmorhiza occidentalis (Nutt. ex Torr. & A.Gray) Torr.
Osmorhiza occidentalis is an erect perennial herb that can sometimes grow over 1 metre (3.3 ft) tall. Its green leaves have blades that reach up to 20 centimeters long, divided into toothed, irregularly cut leaflets. Each leaf blade is held on a long petiole. The inflorescence is a compound umbel made of many tiny yellowish flowers, located at the tip of a stem-like peduncle. It produces elongated, narrow fruit that can grow up to 2.2 centimeters long. Many Native American groups used this plant for a wide variety of medicinal purposes.
