There are significant resemblances between Sparganium and Typha whereas their tepal development shows remarkable differences.
黑三棱属与香蒲属有显著相似之处,但花被片的发生区别较大。
参考来源 - 香蒲目营养器官解剖、花发育及其进化生物学意义
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Sparganium
abstract:Sparganium (Bur-reed) is a genus of flowering plants, containing about 20 species in temperate regions of both the Northern and Southern Hemispheres. It was previously placed alone in the family Sparganiaceae.