像油菜花由哪4部分组成,这样的花叫什么

2024-11-16 04:18:49
推荐回答(5个)
回答1:

油菜花由花萼、花瓣、雄蕊、雌蕊组成,这样的花叫完全花。

花可以分为完全花和不完全花两类。在一朵花中,花萼、花冠、雄蕊、雌蕊四部分俱全的,叫完全花,如白菜花、桃花;缺少其中一至三部分的,叫不完全花,如南瓜花、黄瓜花缺雄蕊或雌蕊;桑树花、栗树花缺花瓣、雄蕊或雌蕊;杨树花、柳树花缺萼片、花瓣、雄蕊或雌蕊。

扩展资料:

油菜花基生叶及下部茎生叶呈琴状分裂,长18~25厘米,宽4~8厘米,先端裂片长卵圆形或长方状圆形;茎中部及上部的叶倒卵状椭圆形或长方形,先端锐尖,基部心形,半抱茎。花序成疏散的总状花序。

萼片4,绿色,微向外伸展,排列为2轮,内轮萼片基部稍膨大;花瓣4,鲜黄色,呈倒卵形,上具明显的网脉,排列成十字形,全缘,具长爪;雄蕊6,4强,排列为2轮;雌蕊1,子房上位,1室,由1层膜质隔膜隔成假2室。

参考资料来源:百度百科-完全花

参考资料来源:百度百科-油菜花

回答2:

答:花萼、花瓣、雄蕊、雌蕊回部分组成,叫作完全花,缺少一部分至几部分叫作不完全花

回答3:

一朵油菜花由四个花萼.四个花瓣.四个雄蕊和一个雌蕊组成.

回答4:

油菜花由花萼、花瓣、雄蕊、雌蕊组成,这样的花叫完全花。

缺少其中一至三部分的叫不完全花,如南瓜花、黄瓜花缺雄蕊或雌蕊;桑树花、栗树花缺花瓣、雄蕊或雌蕊;杨树花、柳树花缺萼片、花瓣、雄蕊或雌蕊。

回答5:

像油菜花由四部分组成花叫什么?

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