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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  Bidens connata Muhl. ex Willd. image
Photographer: from USDA Plants website           
Family Asteraceae
Bidens connata Muhl. ex Willd.
purple-stem beggar-ticks, purple-stemmed tickseed
Bidens: derived from Latin bis, "twice," and dens, "tooth," hence meaning "2-toothed" and referring to the bristles on the achenes
connata: connate, fused together
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, annual, 4"-80" tall, mostly smooth forb with purplish to green stems
Flower: head with or without 1 1/2" rays, yellowish to orange disk 1/3"-1/2" wide, leafy bracts usually longer than the disk; inflorescence of a few stalked, erect heads; blooms Aug.-Oct.
Fruit:2-4(6) barbed awns, the center one usually the shortest fruit drawing
Leaf:mostly on up to 1" long, winged stalk, toothed and often deeply cut but simple
Habitat: wet; disturbed areas
Notes: similar to B. comosus; differing in stem and disk color and the fruit.

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

Flora of North America (off site)
Bidens connata Muhl. ex Willd. var. ambiversa Fassett
Bidens connata Muhl. ex Willd. var. anomala Farw.
Bidens connata Muhl. ex Willd. var. connata
Bidens connata Muhl. ex Willd. var. fallax (Warnst.) Sherff
Bidens connata Muhl. ex Willd. var. gracilipes Fernald
Bidens connata Muhl. ex Willd. var. inundata Fernald
Bidens connata Muhl. ex Willd. var. petiolata (Nutt.) Farw.
Bidens connata Muhl. ex Willd. var. pinnata S.Watson
Bidens connata Muhl. ex Willd. var. submutica Fassett
Bidens connata Muhl. ex Willd. var. typica Fassett
Bidens petiolata Nutt.
Bidens tripartitia L. var. fallax Warnst.

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