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(Plants) a flowering marsh plant of the genus Alsima, with round leaves
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Noun1.alisma - small genus of aquatic or semiaquatic plantsAlisma - small genus of aquatic or semiaquatic plants
liliopsid genus, monocot genus - genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
Alismataceae, family Alismataceae, water-plantain family - perennial or annual aquatic or marsh plants
Alisma plantago-aquatica, water plantain - marsh plant having clusters of small white or pinkish flowers and broad pointed or rounded leaves