Robert W. Freckmann Herbarium


  Pontederia cordata L. image
Photographer: Michael Clayton           

Botanical Illustration

Botanical Illustration

Caroline A. Creevey

John M. Schoeneker

Kenneth J. Sytsma

Merel R. Black

Paul Skawinski

Paul Skawinski

Paul Skawinski

Robert W. Freckmann
Family Pontederiaceae
Pontederia cordata L.
pickerel-weed
Pontederia: for Pontedera, professor at Padua in 18th century
cordata: heart-shaped
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, emergent semi-aquatic 1'- 3 1/2' tall; spreading, colony-forming rhizomes
Flower: blue, 6-parted, 1/2" wide, funnel-shaped, 2 lips divided into 3 lobes each, the upper center lobe marked with yellow; inflorescence a 4" spike with each flower open for only 1 day; blooms June-Aug.
Fruit:ridged, dry seed
Leaf:heart-shaped, shiny, with many parallel veins and long, air-filled stalks; the submerged leaves ribbony
Habitat: shallows, water to 40" deep; in muddy, sediment soil
(Glossary)

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

Flora of North America (off site)
Synonyms 
Narukila cordata (L.) Nieuwl.
Pontederia angustifolia Pursh
Pontederia cordata L. f. latifolia (Raf.) House
Pontederia cordata L. var. angustifolia (Pursh) Torr. & Elliott
Pontederia cordata L. var. cordata
Pontederia cordata L. var. lanceolata (Nutt.) Griseb.
Pontederia cordata L. var. lancifolia (Muhl.) Torr.
Pontederia lanceolata Nutt.
Pontederia lancifolia Muhl.
Unisema cordata (L.) Farw.

         
  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