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叶:掌状复叶对生,无托叶; 花:杂性,两性花生于花序基部,雄花生于上部; 萼冠 4-5 (裂),大小 不等; 雄蕊 5-9 ,于花盘内部;

七叶树科: 多为落叶乔木. 叶:掌状复叶对生,无托叶; 花:杂性,两性花生于花序基部,雄花生于上部; 萼冠 4-5 (裂),大小 不等; 雄蕊 5-9 ,于花盘内部; 子房上位, 3 室 2 胚珠; 果实:蒴果; 种子: 1 ,种脐大,无胚乳。 分布:世界 2 属 30 种;中国 1 属 10 种. 七叶树. 欧洲七叶树.

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叶:掌状复叶对生,无托叶; 花:杂性,两性花生于花序基部,雄花生于上部; 萼冠 4-5 (裂),大小 不等; 雄蕊 5-9 ,于花盘内部;

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  1. 七叶树科: 多为落叶乔木 叶:掌状复叶对生,无托叶; 花:杂性,两性花生于花序基部,雄花生于上部; 萼冠4-5(裂),大小 不等; 雄蕊5-9,于花盘内部; 子房上位,3室2胚珠; 果实:蒴果; 种子:1,种脐大,无胚乳。 分布:世界2属30种;中国1属10种

  2. 七叶树

  3. 欧洲七叶树

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