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apetalous adj.【植物;植物學】無花瓣的。

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Spadix rachis flat , margin with bract - like appendages ; flowers small , monoecious , in 2 series on rachis , apetalous 肉穗花序軸扁平,邊緣有苞片狀附屬物;花小,單性,雌雄同株,呈2列排列于花序軸上,無花被。