hypogynous

Flowers radially symmetric, bisexual or unisexual, hypogynous, perigynous, or epigynous;

开花辐射对称，单的两或，，周位，上位的或；

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

花朵为两花，子房上位，雄蕊先熟，呈筒状绕之雄蕊筒，靠近顶端状的花药。