Family: Nymphaeaceae - Water-lily family
Growth Habit: Herb
Bangla/Vernacular Name: Makhna, Kanta Padma, Kanta Makhna.
English Name: Fox nut.
Densely prickle herbs with thick roots and tocks. Leaves floating orbicular.Flowers epigynous.Partially submerged.Sepals 4, inserted on the edge of the torus above the carpets.Petals numerous in 3 to 5 series. Stamens numerous, many seriate, fascicled in bunches, filament linear. Ovary 5 to many celled. Sunk in the dilated top of the torus, stigma discoid, concave, ovules many on parietal placenta.
Fruit spongy, berry, crowned, by the persisted sepals and covered with stout prickles. Seeds many with pulpy aril, testa thick, endosperm mealy embryo small.
Acylated steryl glycosides have been isolated from this plant. Seed contains starch, protein, vitamins and minerals (Ghani, 2003).
Seed may be eaten raw or roasted in sand before eating (Dinajpur).
Seeds are tonic, astringent, deobstruent and aphrodisiac; good in dysmenorrhoea and restrain seminal gleet. Flowers are tonic and aphrodisiac; restrain seminal gleet. Leaves are good for rheumatism.
Beels and Haors and low lands of Chittagong Hill Tracts, Kishoregonj and Sylhet.
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