Foliage leaves solitary or paired on each growth module ( when paired appearing opposite ) , usually long petiolate , often cordate or sagittate , margin entire .
营养叶单生或成对在每生长单元(当成对时对生),具叶柄的通常长,通常上心形的或箭头形,边缘全缘。
Flowers bisexual ; basal leaves neither hastate nor sagittate .
花两性;基生叶既不戟形也不箭头形。
Flowers unisexual and plants dioecious ; basal leaves hastate or sagittate .
花单性并且雌雄异株;基生叶戟形的或箭头形。
Twining herbs ; leaves sagittate , cordate , or hastate basally , petiolate or subsessile .
特文宁草本;箭头形,心形的叶,基部的或戟形,叶具柄或近无柄。
Leaves mostly floating ; leaf blade venation primarily palmate , base cordate to sagittate , margin entire to dentate , sometimes slightly peltate .