Alexendrian senna is a misspelling of Alexandrian senna. Alexandria (named after Alexander the Great, who conquered Egypt) was a busy port in the ancient land of Egypt that shipped spices and other goods throughout the Mediterranean Sea. The botanical names of Senna are Cassia angustifolia and Cassia acutifolia and it is a member of the plant family Caesalpinaceae. Indian senna and Alexandrian senna are both common names which refer to the Cassia plant. There is no difference other than the name itself. Other common names for Cassia are Cassia senna, Egyptian senna, Nubian senna, and Tinnervelly senna. Nubia was the name of Upper Egypt in ancient times. Senna or Cassia is used as a strong laxative. It is irritating to the lining of the intestines and can create bowel dependency if taken for longer than 7 to 10 days. Senna should not be taken by persons with diverticulosis or diverticulitis.