Vascular Plants of North Carolina
Account for Nodding Beggarticks - Bidens cernua   L.
Members of Asteraceae:
Members of Bidens with account distribution info or public map:
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Section 6 » Order Asterales » Family Asteraceae
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DistributionMountains only, but very scarce in the southwestern counties; collections south to Haywood County, and an iNaturalist photo from Graham County. A collection in 2016 from Rowan County in the central Piedmont (CATU) is not available online for review by the editors, and thus is not added to the map as a result.

Circumboreal, in North America south to GA, LA, and CA.
AbundanceUncommon to locally fairly common in the northern counties, but rather rare in the central Mountains, and very rare in the southwestern counties.
HabitatMarshes, seepage bogs, wet meadows, and wet ditches.
PhenologyFlowering and fruiting August-October.
IdentificationThe common name provides an important clue: the heads face outward or even downward. Plants are annual, the stems often rooting at lower stem nodes, upper portions of stems rather erect and 1 foot or more tall. The ray florets are showy, up to 15 mm long. The leaves are opposite and not lobed or dissected. Smooth Beggarticks (B. laevis) is very similar but the heads do not nod and the rays are 17 mm or more long. Also, that species grows only in the eastern parts of the state, with no range overlap in the state.
Taxonomic CommentsNone

Other Common Name(s)Nodding Bur-marigold
State RankS3
Global RankG5
State Status
US Status
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