Plants stemless or stems to 15 cm; petiole absent to 4.5 cm; leaf blade base attenuate to cuneate, sometimes ultimately rounded; filaments glabrous.

• 植株无茎的或茎可达15厘米；叶柄无到4.；5厘米；叶片基部渐狭到楔形，最后有时圆形；花丝无毛(19