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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  Orobanche uniflora L. image
Photographer: Steve C. Garske           

Botanical Illustration

Dennis W. Woodland

Merel R. Black

Robert H. Read

Robert H. Read

Steve C. Garske

Steve C. Garske

Steve C. Garske
Family Orobanchaceae
Orobanche uniflora L.
cancer-root, naked broom-rape, one-flowered broom-rape
Orobanche: from Greek orobos, a kind of vetch, and anchone, "choke or strangle" because of a parasitic habit, this was the Greek name of a plant that was parasitic on vetch
uniflora: Latin for "one-flowered"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Special Concern
Plant: erect, annual, 2"-8" tall forb; stems all or mostly underground; parasitic on many types of plants
Flower: purple to white, 5-parted, 3/4" long, with 5 almost equal lobes, stalk longer than the flower and much longer than the stem; usually solitary; blooms May-June
Leaf:few, overlapping, scale-like
Habitat: moist; woods, streambanks

More Information Natural Communities Herbarium Specimens
All Orobanche list Google- Images or Text
Anoplanthus uniflorus (L.) Endl.
Aphyllon minutum Suksd.
Aphyllon sedii Suksd.
Aphyllon uniflorum (L.) A.Gray
Aphyllon uniflorum (L.) A.Gray var. occidentale Greene
Orobanche porphyrantha Beck
Orobanche purpurea Jacq.
Orobanche sedii (Suksd.) Fernald
Orobanche terrae-novae Fernald
Orobanche uniflora L. subsp. occidentalis (Greene) Abrams ex Ferris
Orobanche uniflora L. var. minuta (Suksd.) Beck
Orobanche uniflora L. var. occidentalis (Greene) Roy L.Taylor & MacBryde
Orobanche uniflora L. var. purpurea (A.Heller) Achey
Orobanche uniflora L. var. sedii (Suksd.) Achey
Orobanche uniflora L. var. terrae-novae (Fernald) Munz
Orobanche uniflora L. var. typica Achey
Orobanche uniflora L. var. uniflora
Thalesia purpurea A.Heller
Thalesia uniflora (L.) Britton

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