a plant of the agave family with sword-like leaves and spikes of white bell-shaped flowers that are dependent upon the yucca moth for fertilization, native to warm regions of North America and Mexico. Also called Adam's needle 丝兰。 亦称 Adam's needle
Genus Yucca, family Agavaceae: many species, including the Spanish bayonet 丝兰属,龙舌兰科:多种,包括芦荟叶丝兰