"Plantae" . . "Amaryllidaceae" . "Hymenocallis expansa" . . . . "Magnoliophyta" . "Liliopsida" . . . . . . "West Indian Spiderlily" . . . "Asparagales" . . . "Hymenocallis expansa (Herbert) Herbert" . "(Herbert) Herbert" . "Hymenocallis" .