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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  Heteranthera dubia (Jacq.) MacMill. image
Photographer: Derek Anderson           

Botancial Illustration

Derek Anderson

Emmet J. Judziewicz

Paul Skawinski

Paul Skawinski

Paul Skawinski

Paul Skawinski

Robert H. Read

Robert W. Freckmann

Robert W. Freckmann
Family Pontederiaceae
Heteranthera dubia (Jacq.) MacMill.
water star-grass
Heteranthera: heteros for "varied," anthera for "flowered"
dubia: doubtful
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial, submersed or emergent aquatic with thin, branched stems; from rhizomes
Flower: yellow, with 3 petals and 3 petal-like sepals (6 tepals); solitary
Leaf:alternate, thin, stalkless, no prominent midvein
Habitat: water to greater than 7', mudflats; in sediment soil

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

Flora of North America (off site)
Commelina dubia Jacq.
Heteranthera graminea (Michx.) Vahl
Heteranthera liebmannii (Buchenau) Shinners
Schollera graminea (Michx.) Raf.
Zosterella dubia (Jacq.) Small
Zosterella longituba Alexander

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