Enydra fluctuansLour.
Family: Asteraceae

Bengali/vernacular name: Helencha, Hinchashak, Harhach. English name: Water Cress, Marsh Herb.

Description of the plant:
A trailing marsh herb, also floating on water; stem 30-60 cm long, rooting at the nodes. Leaves sessile, 2.5-7.5 cm long, linear-oblong, acute or obtuse, entire or subcrenate. Heads axillary and terminal, sessil, flowers white.

Using information:
Plant is used in ascites, dropsy and anasarca. It is cooked with fish curry and taken to revive appetite after long weakness due to fever or typhoid. Leaves are laxative and antibilious; cure inflammation, leucoderma, bronchitis and biliousness; useful in skin and nervous affections; also useful in tropidity of the liver. Leaf paste is applied over head as a cooling agent and around the inflamed Brest to reduce inflammation (Yusuf et al. 2009).


Chemical constituents:
Plant is rich in protein and is a good source of β-carotene.  It also contains saponins, myricyl alcohol, kaurol, cholesterol, sitosterol, glucoside, sesquiterpene lactones including germacranolide, enhydrin, fluctuanin and fluctuandin, a number of diterpenoid acids and their isovalerate and angelate derivatives, stigmasterol, cholesterol, sitosterol, glucoside, other steroids and gibberellins A9 and A13. have been isolated from this plant (Ghani, 2003).

Throughout Bangladesh in ponds, swamps and streams.