(1)
Smith, G. F.; Figueiredo, E.; Verloove, F.; Klopper, R. R.; Silva, V. An Annotated Catalogue of Aloe and Aloiampelos (Asphodelaceae Subfam. Alooideae) Naturalised and Escaped in Continental Portugal. Phytotaxa 2023, 629, 35-52.