Ranunculus flavidus (Hand.-Mazz.) C. Cook in Watsonia 5: 29. 1963. Batrachium flavidum Hand.-Mazz., Meded. Gotob. Bot. Tradg. et Acta Hort. Gotob. 13: 168. 1939.

Aquatic herbs; stems branched, glabrous, rooting at nodes; roots filiform. Leaves all submerged, flaccid, 1.5 - 3 cm long; ultimate segments filiform. Flowers terminal, solitary, 10 - 15 mm in diam., yellow. Sepals 5, obovate, rotund, concave, 4 - 5 mm long, glabrous. Petals 7 - 8 x 4 - 5 mm, yellow, with lunate nectar-pit. Stamens ca 20. Achenes obovoid, ca 2.5 mm long, transversely rugose, in globose heads, with minute style; receptacle pilose; stalks up to 8 cm long.

Fl. & Fr. June - Sept.

Distrib. India: W. Himalayas, in stagnant or running water. Jammu & Kashmir.

China.