Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  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.
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

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

Flora of North America (off site)
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.

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