1) Freshwater plant 2) Genus alisma 3) Liliopsid genus 4) Monocot genus 
Alisma is a genus of flowering plants in the family Alismataceae, members of which are commonly known as water-plantains. The genus consists of aquatic plants with leaves either floating or submerged, found in a variety of still water habitats around the world (nearly worldwide). The flowers are hermaphrodite, and are arranged in panicles, racemes...
(Water Plantain) This is a group of hardy aquatic plants. The most popular is A. plantago-aquatica, the Water Plantain. This plant grows 2 or 3 feet high and flourishes in shallow water, though it will grow in water up to 18 inches deep. It produces rosettes of long-stalked, rounded to heart-shaped leaves. In June and July, panicles of pinkish-whit...
Alisma is a cultivated variety of potato.
[n] - small genus of aquatic or semiaquatic plants
genus Alisma noun small genus of aquatic or semiaquatic plants