Smith, G. F., Klopper, R. R., & Grace, O. M. (2019).

Aloidendron (Asphodelaceae subfam. Alooideae) consists of six species, not seven: Aloe sabaea is a true aloe

. Phytotaxa, 416(1), 88–90. https://doi.org/10.11646/phytotaxa.416.1.11