Robert W. Freckmann Herbarium


  Fallopia sachalinensis (F.W.Schmidt ex Maxim.) Nakai image
Photographer: Emmet J. Judziewicz           

Emmet J. Judziewicz

Emmet J. Judziewicz

Emmet J. Judziewicz

Emmet J. Judziewicz
Family Polygonaceae
Fallopia sachalinensis (F.W.Schmidt ex Maxim.) Nakai
giant knotweed
Fallopia: for Gabriello (Gabriele) Fallopia, 16th century Italian anatomist who discovered fallopian tubes
sachalinensis: of the island of Sakhalin, north of Japan
  Prohibited 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 - persisting and spreading; ecologically invasive
Plant: erect to arching, perennial, 4'-10' tall, stout, shrub-like forb; long rhizomes forming clones to several acres; stems angular
Flower: white to greenish, 5-parted, petals and petal-like sepals; inflorescence many 3"-6" branched clusters from the upper leaf axils
Fruit:dry seed
Leaf:alternate, up to 12" long, oval with a gradually tapering tip and a heart-shaped base
Habitat: shores, grasslands, woods
(Glossary)

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

Flora of North America (off site)
Synonyms 
Pleuropterus sachalinensis (F.W.Schmidt ex Maxim.) H.Gross
Polygonum sachalinense F.W.Schmidt ex Maxim.
Reynoutria sachalinensis (F.W.Schmidt ex Maxim.) Nakai
Tiniaria sachalinensis (F.W.Schmidt ex Maxim.) Janch.

         
  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