Bidens cernua is a species of flowering plant in the aster family, Asteraceae. Bidens cernua is distributed throughout much of Eurasia and North America. It is commonly called nodding beggarticks or nodding bur-marigold.

Distribution and abundance

Bidens cernua is distributed throughout much of Eurasia and North America.

Morphology

General description

Bidens cernua is an annual species growing roughly 1m tall, with a fibrous root. Stems are rigid and often either simple or beached. Stem leaves are simple, unstalked, and opposite.