Deciduous shrubs or trees, rarely a woody climber, with white latex in phloem, turning black upon air exposure, polygamous or dioecious.
英
美
落叶灌木或乔木,很少一木质藤本,在韧皮部具白色乳汁,在空气中暴露会变黑,杂性的或雌雄异株。
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英 汉