Nasturtium officinale W.T.Aiton  
Family: Brassicaceae
watercress
[Nasturtium nasturtium-aquaticum (L.) H.Karst., Nasturtium officinale f. nanum W.T.Aiton, Nasturtium officinale f. siifolium W.T.Aiton, Nasturtium officinale f. submersum W.T.Aiton, Nasturtium officinale f. terrestre W.T.Aiton, Nasturtium officinale var. siifolium W.T.Aiton, Radicula nasturtium-aquaticum (L.) Britten & Rendle, Rorippa nasturtium-aquaticum (L.) Hayek, Sisymbrium nasturtium-aquaticum L.]
Nasturtium officinale image
Christopher Noll  
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
Nasturtium officinale image
Nasturtium officinale image
Merel R. Black  
Nasturtium officinale image
Matthew L. Wagner  
Nasturtium officinale image
Robert W. Freckmann  
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