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

朵为两性，子房上位，雄先熟，筒状环绕之雄筒，靠近顶端具环带状的药。

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.

指被和雄群着生群之上的的结构类型。