Alisma triviale Pursh
Family: Alismataceae
northern water-plantain
[Alisma brevipes Greene,  more]
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Christopher Noll  
Etymology: Alisma: Greek name for a water plant
Plants: erect or floating, perennial, semi-aquatic to aquatic, 4"-40" tall
Leaves: in basal rosette, with parallel veins, linear to lance-like to widely elliptical or oval, long-stalked, smooth and firm, aquatic or terrestrial
Flowers: white, 3-parted, 1/3" wide, petals half again as long as the sepals; inflorescence taller than the leaves and with 4 or more whorls of flowers per stalk; blooms June-Sept.
Fruits: dense ring of dry seeds; seed with 1 groove on the back
Habitat: shallow water, ponds; in muddy soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native
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Christopher Noll  
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Stephen L. Solheim  
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Caroline A. Creevey  
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Merel R. Black  
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Emmet J. Judziewicz  
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Keir Morse  
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Robert Bierman  
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Janice Stiefel  
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