Leaves with a pair of glands at junction of leaf base and petiole apex, these much larger than any elsewhere along leaf margin.
叶具一腺体在叶基部和叶柄先端，比比任何程度在别处沿着叶缘大的这些的连接点。lobes triangular-ovate, fleshy, at least as long as gynostegium, apex blunt, sometimes extended and sharply incurved.
卵形的裂片三角形，肉质，至少倍于合蕊冠，先端钝尖，有时延长和锐。Tepals 6, free, often colored, outer and inner ones different in shape, apex usually with a minute tuft of white hairs.
花被片6，离生，经常染色，外部和不同的内部的在外形上，先端通常微小束白色毛。Petals white or yellow, obcordate, with an inflexed apex, outer petals in outer flowers of an umbellule enlarged and radiant.
花瓣白色或黄的，倒心形，具一内折先端，小伞的外部花外部花瓣扩大和辐射状。Ovary half inferior, obovate, apex truncate and with a membranous crown.
子房半下位，倒卵形，先端截形并且具膜质冠。apex of calyx lobes truncate and with a membranous disk, disk margin fimbriate.
萼裂片截形和具的先端一膜质花盘，花盘边缘流苏状。Petals 5, connate at base into a very short tube, apex free, valvate, in pistillate flowers early deciduous or absent.
花瓣5，在基部合生进一短筒部，先端离生，镊合状的，在雌花里较早些时候的落叶的或无。Ovary ovoid, apex truncate and with a membranous 4-lobed crown, crown margin abruptly denticulate.
子房卵球形，先端截形并且具膜质4裂冠，冠边缘突然具小齿。filaments at least in male and bisexual flowers subulate to filiform at apex.
花丝至少在雄花和两性花中先端钻形到丝状；