Growth form: True senna "Sanna" is a perennial herbaceous under-shrub.
Genus: Senna Mill.
Species: Senna alexandrina Mill.
Citation in the Quran:
The word Sanna is not mentioned in the Holy Qur’an.
Citation in the Hadit:
Narrated by Umm Salamah: the Messenger of Allah peace be upon him, said: “what I see you sick?”, I said, I drank a drug for laxative , He said: “what is it?”, I said As-Shubrum, he said: “what you and Shubrum?”, He said: “it’s hot , tack sanna and Sanout, they healing for all diseases except death” Sahih Sunaan Ibn Majah.
Habitat & Distribution:
Senna grows naturally at the deserts of the Arabian peninsula and North Africa particularly on more compact on gravelly and rocky areas.