Aloe thraskii grows in nature close to the sea in sandy soil, sometimes almost in sand alone. Reynolds (1974) tells a story about the first collection of this Aloe species, said to have occurred in the Free State in 1860, nogal! The only tall-stemmed Aloe occurring naturally in the Free State is A. ferox that grows near the Orange (Gariep) River.
Errors will slip into human endeavours of description, recording and logic, to be corrected by others, later in the network. Continual improvement in this knowledge will last until the interest of human society in plants dies or their civilization loses the capacity.
Unless a plant is lucky enough to survive humanity and another studious species arises…