(整理)观花植物检索表

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精品文档 中国农业大学东校区春季开花植物花器官

分类检索表

1草本········································································2 1 木本········································································4 2 雄蕊背部具细管状距···················································紫花地丁

2 花不具距····································································

3 3 头状花序·······························································蒲公英

3 总状花序·······························································二月兰

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4 花瓣合生····································································

5 4 花瓣离生····································································7 5 花瓣颜色为紫色或白色·····················································丁香

5 花瓣颜色为黄色······························································

6

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6 花冠通常6裂···························································迎春花

6 花冠通常4裂·····························································连翘

7 假蝶形花冠 (8)

7 非假蝶形花冠 (9)

8 单叶互生，心形，全缘（叶缘有增厚的透明边），光滑无毛·····················紫荆精品文档

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8 成下垂的总状花序，叶广卵圆形，先端急尖，基部截形或浅心形，背面有短绒毛，脉上毛较多·································································垂丝紫荆

9 花叶同放···································································桃

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9 花叶不同放 (10)

10 先花后叶 (11)

10 先叶后花 (17)

11 雄蕊和雌蕊均多数，分离，螺旋状排列于柱状花托上 (12)

11 无柱状花托 (14)

12 花大，花萼、花瓣相似，共9片，纯白色····································玉兰精品文档

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12 花大，花瓣6片，萼片3 (13)

13 花瓣外面紫色，里面近白色··············································紫玉兰精品文档

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13 花瓣外面多淡紫色，基部色较深，里面白色······························二乔玉兰精品文档

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14 花单生 (15)

14 花簇生 (16)

15 萼筒广钟状，长3—5mm,微被毛或无毛···································榆叶梅

15 萼筒圆筒状，外面基部被短柔毛···············································杏精品文档

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16 伞房花序································································樱桃

16 短总状花序······························································樱花精品文档

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17 花单生，粉红色··························································木瓜精品文档

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17 花簇生 (18)

18 萼筒外面无毛或有白色绒毛，萼片三角卵形，比萼筒短或近等长，先端急尖，全缘，外面无毛或偶有稀疏绒毛，内面密被白色绒毛·································海棠花

18 萼筒钟状，外面无毛；萼片直立，半圆形稀卵形·························贴梗海棠

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