The dried leaflets of several species of cassia, plants belonging to the bean family. These plants are native to northern Africa, western Asia, and southern Europe, particularly to Arabia.

Senna

The dried leaflets of several species of cassia, plants belonging to the bean family. These plants are…

"Flowering branch of Senna (Cassia obovata). a, a pod." -Whitney, 1911

Senna

"Flowering branch of Senna (Cassia obovata). a, a pod." -Whitney, 1911