Anemone rivularis Buch.-Ham. in DC., Syst. Nat. 1: 211. 1817; Hook. f. & Thomson in Fl. Brit. India 1: 9. 1872. A. wightiana Wallich ex Wight & Arn., Prodr. 3. 1834; Wight, Icon. 3: t. 936. 1845.

Herbs,.perennial, Up to 1 m high; rootstock stout, woody, sheathed in fibres. Radical leaves 3-partite, 10 - 12 cm wide in smaller specimens, 30 - 35 cm in larger ones, deeply 3- to 5-lobed, each lobe again 3 - 4 -lobed, serrate, hairy on both surfaces; cauline leaves palmately finely dissected into many linear lobes; leaflets broadly elliptic or rhombic, cuneate at base, acute at apex, often deeply 3-lobed, serrate along margins, 4 - 7 x 3 - 5 cm, pubescent with stiff hairs; petioles 10 - 30 cm long. Scapes stout, 7 - 35 cm long; involucral leaves similar to leaves, deeply incised, serrate; segments linear, ca 2 mm broad; cymes compound, many-flowered; branches spreading, elongate, 2-bracteolate. Flowers white, blue or purplish outside, 2.5 - 4 cm in diam. Sepals 5 - 8, elliptic, obovate, obtuse, 4 - 10 mm long, silky outside. Filaments slender; anthers ovoid. Carpels many; styles curved at tip. Achenes broadly elliptic, ca 7 x 5 mm, compressed with ca 1 mm long glabrous hooked beaks.

Fl. & Fr. June - Oct.

Distrib. India: Streamsides and clearings in broad leaved forests. Himachal Pradesh, Uttar Pradesh, Sikkim and Tamil Nadu.

Sri Lanka, Myanmar and China.

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