Bidens cernua

Bidens cernua
Nodding Bur-marigold
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Heliantheae
Genus: Bidens
Species: B. cernua
Binomial name
Bidens cernua
L.
Synonyms

Bidens cernuum
Bidens glaucescens

Bidens cernua, the nodding bur-marigold, is an herbaceous plant native to North America. It is also called nodding beggartick. It grows from 30-100cm tall in wet areas. The leaves are sessile with a coarsely-toothed margin.