Senna Cassia angustifolia is a small bark shrub that grows in the upper Nile regions of Africa and the Arabian peninsula. According to a rare and amazing Egyptian medical papyrus Senna was prescribed by the physicians for their distinguished patients.
Senna aids in relieving constipation and intestinal symptoms.
It was also used extensively by Arabian physicians, according to their 9th century A.D. writings. Senna is often combined with various aromatic herbs.