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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  Myriophyllum heterophyllum Michx. image
Photographer: Steve C. Garske           

Botanical Illustration

Paul Skawinski

Paul Skawinski

Paul Skawinski

Steve C. Garske

Steve C. Garske
Family Haloragaceae
Myriophyllum heterophyllum Michx.
two-leaf water-milfoil, various-leaved water-milfoil
Myriophyllum: from Greek myrios, "numberless," and phyllon, "leaf," alluding to the many divisions of the submerged leaves of these aquatic plants
heterophyllum: heteros for "varied" and phylla for "leaves"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
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Status: Native
Plant: perennial, submersed aquatic; from hardy rhizomes
Flower: red to pink, 4-parted, small, with no winter buds; inflorescence a 2"-6" clustered spike held above the water with flowers from the axils of the sharply-toothed, whorled bracts
Fruit:hard, 4-parted with a curved beak
Leaf:mostly in closely-spaced whorls but some scattered, short-stalked; finely pinnately-divided into 7-10 thread-like, paired leaflets
Habitat: water to 16' deep; in sediment soil

More Information Natural Communities Herbarium Specimens
All Myriophyllum list Google- Images or Text
There are no synonyms for this taxon.

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