Robert W. Freckmann Herbarium


  Nasturtium officinale R.Br. image
Photographer: Christopher Noll           

Botanical Illustration

Botanical Illustration

Botanical Illustration

Richard Bauer

Kenneth J. Sytsma

Kenneth J. Sytsma

Kurt Stüber

Matthew L. Wagner

Merel R. Black

Merel R. Black

Merel R. Black

Marion Sheehan

Christopher Noll

Paul Skawinski
Family Brassicaceae
Nasturtium officinale R.Br.
watercress
Nasturtium: Latin nasus for “nose” and tortum for “to twist”, referring to the pungent taste
officinale: Latin generally meaning "of the shops" or "sold in the marketplace" or "official"
  Invasive - Eradicate!  Stop It symbol- click for definition
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - naturalized; ecologically invasive
Plant: erect or spreading, perennial, 4"-18" tall, emergent aquatic, sometimes evergreen, forming large, tangled wintergreen 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; blooms May-Oct.
Fruit:long, thin pod with coarse seeds in 2 rows
Leaf:pinnately-divided into 3-9 rounded leaflets with the end one longest
Habitat: sun; streams, springs, cold water; in limy, sedimentary, gravelly soil
(Glossary)

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

Flora of North America (off site)
Synonyms 
Nasturtium nasturtium-aquaticum (L.) H.Karst.
Nasturtium officinale R.Br. f. nanum Glück
Nasturtium officinale R.Br. f. siifolium Rchb.
Nasturtium officinale R.Br. f. submersum Glück
Nasturtium officinale R.Br. f. terrestre Glück
Nasturtium officinale R.Br. var. siifolium (Rchb.) W.D.J.Koch
Radicula nasturtium-aquaticum (L.) Britten & Rendle
Rorippa nasturtium-aquaticum (L.) Hayek
Sisymbrium nasturtium-aquaticum L.

         
  Home
Faculty
Botany News/Events
Projects
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
 
Plants of Wisconsin
Vascular Plants
Bryophytes
Ethnobotany
Natural Communities
Botany News/Events
Other Links
Lichens (off site)   
Tom Volk's Fungi (off site)
Taxonomy of Vascular Plants
                          Vascular Plants
Browse by Identification Guides
Family Wildflowers
Genus Trees
Common Names Shrubs
Search by Vines
Names Aquatic-Semi aquatic
Specimens Ferns - Fern Allies
Blooming Times Grasses, Sedges, or Rushes
County & Status Other Resources  
Town Range Taxonomy of Vascular Plants
  WI Checklist & CofC Values
Bryophytes
Browse by:
Common Name
Genus
Search by:
County
 Name
Copyright © 2012 Permissions Contact Us Web Map