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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  Ruppia cirrhosa (Petagna) Grande image
Photographer: Robert W. Freckmann           

Botanical Illustration

Kurt Stüber

Robert W. Freckmann

Robert W. Freckmann
Family Ruppiaceae
Ruppia cirrhosa (Petagna) Grande
spiral ditch-grass
Ruppia: named after Heinrich Bernhard Ruppius (1688-1719), a German botanist
cirrhosa: cirrhus for "curl, ringlet, tuft of hair, tendril;"osus for "many"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial, submersed aquatic; stems long, spiral-twisted flower stalk
Fruit:umbel cluster
Leaf:stiff, thin scattered on stem; large open sheath at base
Habitat: wet; very alkaline water to 7' deep

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

Flora of North America (off site)
Buccaferrea cirrhosa Petagna
Ruppia cirrhosa (Petagna) Grande subsp. occidentalis (S.Watson) A.Löve & D.Löve
Ruppia maritima L. var. occidentalis (S.Watson) Graebn.
Ruppia maritima L. var. spiralis Morris
Ruppia occidentalis S.Watson

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