Aloe, is a genus containing about four hundred species of flowering succulent plants. The genus is native to Africa, and is common in South Africa's Cape Province, the mountains of tropical Africa, and neighbouring areas such as Madagascar, the Arabian peninsula, and the islands off Africa.
Most Aloes have a rosette of large, thick, fleshy leaves. The leaves are often lance-shaped with a sharp apex and a spiny margin. Aloe flowers are tubular, frequently yellow, pink or red and are borne on densely clustered, simple or branched leafless stems.
Many species of Aloe appear to be stemless, with the rosette growing directly at ground level; other varieties may have a branched or unbranched stem from which the fleshy leaves spring. They vary in colour from grey to bright-green and are sometimes striped or mottled. Some aloes native to South Africa have large trunks and are called aloe trees.
I am mentioning some of the important aloe vera species:
[*]Aloe arborescens - Aloe Arborescens Miller has medicinal properties and is used in healthcare.
- prevents astriction
lowers the blood glucose level
relieves bottle-ache

[*] Aloe aristata - known as torch plant and lace aloe, generally found in South Africa and surrounding area. Its nectar rich flower attracts birds, wasp and bees easily.

[*] Aloe dichotoma - known as quiver tree or kokerboom, generally found in South Africa and Namibia also. Its bark and branches are used by Bushmen to make quiver for their arrows.

[*] Aloe ngobitensis - it’s a succulent and member of the aloe genus found in Kenya.

[*] Aloe variegata - known as tiger aloe, is a species of aloe indigenous to South Africa. All parts of the aloe variegata are poisonous.

[*] Aloe wildii - has a glasslike appearance and is in the family asphodelaceae. Found in Africa.

Any other specifies you know about and would like to share?

