叶:单叶对生或轮生,多全缘,无托叶; 花:两性,辐射对称,单生或聚伞花序; 萼 5 裂,基部内有腺体; 冠常 5 裂,喉有副花冠或膜质或毛状附属物;
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夹竹桃科: 具乳汁或水液,多无刺. 叶:单叶对生或轮生,多全缘,无托叶; 花:两性,辐射对称,单生或聚伞花序; 萼 5 裂,基部内有腺体; 冠常 5 裂,喉有副花冠或膜质或毛状附属物; 雄蕊 5 ,在花冠筒或喉部,常有花盘; 子房多上位; 果实:浆果、核果、蒴果等; 种子:常一端被毛或膜质翅。 分布:世界 250 属 2000 种;中国 46 属 176 种 33 变种. 夹竹桃. 黄花夹竹桃. 长春花. 鸡蛋花.
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叶:单叶对生或轮生,多全缘,无托叶; 花:两性,辐射对称,单生或聚伞花序; 萼 5 裂,基部内有腺体; 冠常 5 裂,喉有副花冠或膜质或毛状附属物;
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