Nasturtium microphyllum Boenn. ex Rchb.  
Family: Brassicaceae
one-row yellow-cress, watercress
[Nasturtium fontanum var. longisiliquum Asch., Nasturtium officinale var. microphyllum W.T.Aiton, Rorippa microphylla (Boenn. ex Rchb.) Hyl. ex A.Löve & D.Löve, Rorippa nasturtium-aquaticum var. longisiliqua (L.) Hayek]
Nasturtium microphyllum image
Steve C. Garske  
Etymology: Nasturtium: Latin nasus for “nose” and tortum for “to twist”, referring to the pungent taste
Plants: erect or spreading, perennial, 4"-18" tall, emergent aquatic, sometimes evergreen, forming large, tangled masses; stems spreading; rooting from the lower nodes
Leaves: pinnately-divided into 3-9 rounded leaflets with the end one longest
Flowers: white, 4-parted, 1/5" wide, petals 2 times longer than the sepals; inflorescence a cluster (raceme) of stalked flowers from the ends of the shoots
Fruits: pod, long, thin; coarse seeds in 1 rows
Habitat: sun; wet; streams, springs, cold water; in limy, sediment, gravelly soil
Conservation Status: Introduced - adventive
Nasturtium microphyllum image
Steve C. Garske  
Nasturtium microphyllum image
Nasturtium microphyllum image
Nasturtium microphyllum image
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