1. A treelike plant (Yucca brevifolia) of the southwest United States, having sword-shaped leaves and greenish-white flowers grouped in large panicles.

• 短叶丝兰，约书亚树：产于美国西南部的一种树状植物（短叶丝兰丝兰属）长有剑形叶，开有淡绿色花，花为圆锥状大花簇