Synonyms: Amaryllis advena (homotypic); Amaryllis advena var. citrina; Amaryllis advena var. coccinea; Amaryllis sweetiana; Chlidanthus cumingii; Habranthus advenus (homotypic); Habranthus hesperius; Habranthus hesperius var. advena (homotypic); Habranthus hesperius var. miniatus; Habranthus hesperius var. pallidus; Habranthus miniatus; Habranthus pallidus; Hippeastrum advenum (homotypic); Hippeastrum hesperius var. pallida; Hippeastrum pallidum; Myostemma advena (homotypic); Phycella macleanica; Rhodophiala advena (homotypic)