Species
Bidens cernua
Flowering Plants
Citation Formats
General Reference
APA Style
BibTeX
Bidens cernua, commonly called nodding beggarticks or nodding bur-marigold, is a species of flowering plant in the aster family Asteraceae, first named by Carl Linnaeus, and found across much of Eurasia and North America. It is an annual herb growing to about 1 meter tall with rigid stems, opposite saw-toothed leaves and yellow flower heads with 6 to 8 ray petals that nod downward as they mature. Its narrow, wedge-shaped seeds carry 3 to 4 barbed bristles.
Sources
Reader Challenges (0 open reader challenges)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.
View At A Past Year
The atlas records no dated fact of its own for this entry, so there is no other year to choose.