The flower is bisexual, hypogynous, and with protandrous, tubular androecium whose anther are fused in a broad ring.

花朵为两性花，子房上位，熟，呈筒状绕筒，靠近顶带状的花药。

Epigyny The type of flower structure in which the perianth and androecium are inserted above the gynoecium, giving an inferior ovary, fused with the receptacle.

指花被和群着生于雌群上的花的结构类型。