Botanical Survey of India | Flora of India

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Rorippa palustris (L.) Besser, Enum. Pl. Volhyn. 27. 1822. Sisymbrium amphibium L var. paluslre L., Sp. Pl. 657. 1753. Rorippa islandica auct. non (Deder) Borbas 1900. Nasturtium palustre (L.) DC., Syst. Nat. 2: 191. 1821; Hook. f. & T. Anderson in Fl Brit. India 1: 133. 1872.


Herbs, annual or biennial, up to 80 cm high, suberect to ascending, glabrous or with a few simple hairs. Leaves lyrate-pinnatifid or toothed, 5 - 18 x 1 - 5 cm; lateral segments 3 - 5-jugate, oblong, elliptic; terminal segments ovate, obtuse at apex, crenately sinuate-toothed at margins, glabrous. Racemes ebracteate, 10 - 30-flowered, up to 25 cm long in fruit. Flowers ca 2 mm across; pedicels horizontal, ca 1 cm long in fruit. Sepals erecto-patent, ovate, 2 - 2.5 mm long, green or yellowish. Petals spathulate, 2 - 2.5 x 0.5 - 1.5 cm, yellow. Filaments dilated at base, ca 2 mm long. Fruits oblong, slightly curved when ripe, 5 - 10 x 2 - 2.5 mm; valves convex, glabrous. Seeds crowded, 2-seriate, many, suborbicular, not winged, ca 0.5 mm in diam., pale brown.

Fl. & Fr. April - July.

Distrib. India: Humid marshy localities, 2000 - 3300 m. Jammu & Kashmir, Himachal Pradesh, Bihar, West Bengal and Assam.

Europe and temperate Asia.

Notes. Naqshi & Javeid (in Geobios 3: 165 - 166. 1976) discuss the nomenclature of this species.




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