| Bidens cernua |
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| Scientific classification |
| Kingdom: |
Plantae |
| Clade: |
Tracheophytes |
| Clade: |
Angiosperms |
| Clade: |
Eudicots |
| Clade: |
Asterids |
| Order: |
Asterales |
| Family: |
Asteraceae |
| Genus: |
Bidens |
| Species: |
B. cernua |
| Binomial name |
Bidens cernua
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| Synonyms |
- Bidens ciliolata Greene
- Bidens cusickii Greene
- Bidens dentata (Nutt.) Wiegand
- Bidens elliptica (Wiegand) Gleason
- Bidens filamentosa Rydb.
- Bidens gracilenta Greene
- Bidens graveolens Komarov 1916 not Mart. 1824
- Bidens kelloggii Greene
- Bidens leptomeria Greene
- Bidens leptopoda Greene
- Bidens lonchophylla Greene
- Bidens macounii Greene
- Bidens marginata Greene 1901 not Perr ex DC. 1836
- Bidens minima Huds.
- Bidens prionophylla Greene
- Bidens quadriaristata var. dentata Nutt.
- Bidens tripartita var. minima Huds.
- Bidens venosa Gardner
- Buphthalmum nutans Vitman
- Coreopsis bidens L.
- Coreopsis quadricornis Krock.
- Coreopsis ridens Gunnerus
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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.