Robert W. Freckmann Herbarium
University of Wisconsin - Stevens Point

Vascular Plants

Plants of Wisconsin

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  Bidens aristosus (Michx.) Britton image
Photographer: Robert W. Freckmann           

Robert W. Freckmann
Family Asteraceae
Bidens aristosus (Michx.) Britton
midwestern tickseed-sunflower, swamp marigold
Bidens: derived from Latin bis, "twice," and dens, "tooth," hence meaning "2-toothed" and referring to the bristles on the achenes
aristosus: bearded, furnished with awns; bristly
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: annual/biennial forb
(Glossary)

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

Flora of North America (off site)
Synonyms 
Bidens aristosus (Michx.) Britton f. aristosus
Bidens aristosus (Michx.) Britton var. fritcheyi Fernald
Bidens aristosus (Michx.) Britton var. muticus (A.Gray) A.Gray ex Gatt.
Bidens aristosus (Michx.) Britton var. retrorsus (Sherff) Wunderlin
Bidens polylepis S.F.Blake var. retrorsus Sherff
Coreopsis aristosa Michx.
Coreopsis aristosa Michx. var. mutica A.Gray

Vascular Plants

Plants of Wisconsin

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