Description from Flora of China
Herbs, prostrate. Stoloniferous. Leaves alternate, long petiolate; leaf blade pinnately parted nearly to midrib, segments incised and apically crenate. Bracts small, subulate. Flowers small, actinomorphic, solitary in leaf axils. Pedicel slender. Calyx campanulate, 5-lobed, parted to middle, outside densely hairy. Corolla tube inside densely barbate with unicellular hairs from throat to base; lobes 5, equal. Stamens 4, equal, inserted at corolla throat; anthers narrowly sagittate, 2-loculed. Disc cupular, sometimes suboblique, margin undulate. Ovary 2-loculed, apically barbate or subglabrous. Stigma 2-lobed. Capsule globose, included. Seeds densely villous with peltate hairs.
One species: Bhutan, China, India, Japan, New Guinea, Philippines.