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Photographer: Richard Bauer
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Family Asteraceae
Bidens cernua L.
nodding beggar-ticks, nodding bur-marigold
Bidens: derived from Latin bis, "twice," and dens, "tooth," hence meaning "2-toothed" and referring to the bristles on the achenes
cernua: Latin for "nodding"
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| Status: | Native |
| Plant: | erect, annual, 4"-40" tall forb |
| Flower: | head 1 1/4"-2" wide with yellow rays to 1/2" long, center disk to 1/2"-1" wide, leafy bracts usually longer than the disk; inflorescence of many hemispherical heads (often nodding with age) in large, loose, stalked clusters; blooms Aug.-Oct. |
| Fruit: | dry, with 2-4 barbed awns  |
| Leaf: | mostly stalkless, undivided but with coarse teeth |
| Habitat: | wet; meadows, marshes, shores |
| (Glossary) |
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