毛柄天胡荽 mao bing tian hu sui

Hydrocotyle sibthorpioides Lamarck var. dichondroides (Makino) M. Hiroe.

Stems slender, filiform, creeping to suberect, pilose. Petioles filiform, 0.5–3 cm, densely hirsutulous with recurved white hairs; leaf blade orbicular-reniform, 0.5–1.5 mm wide, glabrous or shortly puberulent along veins on adaxial surface, thin membranous, very shallowly crenately 5- or 7-lobed, lobes inconspicuously crenulate. Umbels solitary at nodes, 2–8-flowered; peduncles filiform, 1–3 cm, usually longer than leaves; pedicels very short, flowers almost sessile. Petals white. Fruit subglobose, ca. 1 mm wide, glabrous. Fl. and fr. Jun–Sep.

Wet walls and rocks; near sea level. N Taiwan (Taipei) [Japan].

This incompletely known species is recorded only from a few collections. It has reputed medicinal value.