Any of various Old World shrubs having smooth entire leaves and terminal panicles of small white flowers followed by small black berries, many used for hedges.
任何一种东半球的灌木，有光滑的完整的叶子和末端的小白花的圆锥花序和小的黑浆果，许多被用做树篱。
Common thorny tropical American tree having terminal racemes of yellow flowers followed by sickle-shaped or circinate edible pods and yielding good timber and a yellow dye and mucilaginous gum.
热带美洲的一种普通带刺乔木，黄色花，总状花序，镰刀状可食荚果，可产生优良木材，黄色染料和粘性胶。
Any of various evergreen plants of the genus Yucca, native to the warmer regions of North America, having often tall stout stems and a terminal cluster of white flowers.
丝兰一种丝兰属常绿植物，原产于北美的温暖地带，枝干长而粗壮，开有白花的顶生花簇。
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