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仙人球的外形描写
更新时间: 2020-10-09 00:00:00  

仙人掌形状扁平,通体呈椭圆状,全株为暗绿色,外面有一层透明的表皮,可以防止水分蒸发;在它的表皮上有疣状突起,那是它的刺座。每个刺座有一根主刺和若干小刺以及一些绒毛,它的主刺呈红褐色至暗褐色,是由它的叶子退化而成的;在仙人掌的顶部,是它的生长点,它就是通过生长点实现长大、分枝的。

关键词: 仙人球 外形 描写

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