Smith, G. F., & Klopper, R. R. (2022).

Aloe immaculata and A. affinis (Asphodelaceae subfam. Alooideae), two endemics from northern and eastern South Africa, are different maculate aloe species

. Phytotaxa, 571(3), 291–300. https://doi.org/10.11646/phytotaxa.571.3.3