Robert W. Freckmann Herbarium


  Nasturtium microphyllum Boenn. ex Rchb. image
Photographer: Steve C. Garske           

Steve C. Garske
Family Brassicaceae
Nasturtium microphyllum Boenn. ex Rchb.
one-row yellow-cress, watercress
Nasturtium: Latin nasus for “nose” and tortum for “to twist”, referring to the pungent taste
microphyllum: micro for "small;" phyllon for "leaf"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - adventive
Plant: erect or spreading, perennial, 4"-18" tall, emergent aquatic, sometimes evergreen, forming large, tangled masses; stems spreading; rooting from the lower nodes
Flower: 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
Fruit:pod, long, thin; coarse seeds in 1 rows
Leaf:pinnately-divided into 3-9 rounded leaflets with the end one longest
Habitat: sun; wet; streams, springs, cold water; in limy, sediment, gravelly soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Nasturtium list Google- Images or Text

Flora of North America (off site)
Synonyms 
Nasturtium fontanum Asch. var. longisiliquum Irmisch
Nasturtium officinale R.Br. var. microphyllum (Boenn. ex Rchb.) Thell.
Rorippa microphylla (Boenn. ex Rchb.) Hyl. ex A.Löve & D.Löve
Rorippa nasturtium-aquaticum (L.) Hayek var. longisiliqua (Irmisch) B.Boivin

         
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