Natural hybrids in the genus of Aloe (Aloeaceae) in East Africa
Natural hybrids can arise in the genus Aloe because their chief pollinators, sunbirds, are not species-specific when feeding on nectar. From literature and the observations of the writer and others, 16 cases of known or suspected natural interspecific hybrids in East Africa are recorded.
Journal of East African Natural History Vol. 84 (2) 1995: pp. 141-145