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。