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，雄蕊先熟，呈筒状环绕之雄蕊筒，靠近顶端具环带状的花药。

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.

指花被和雄蕊群着生于雌蕊群之上的花的结构类型。