Vascular Plants of North Carolina
Account for Smooth Beggarticks - Bidens laevis   (L.) Britton, Sterns, & Poggenburg
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Section 6 » Order Asterales » Family Asteraceae
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Author(L.) Britton, Sterns, & Poggenburg
DistributionOuter Coastal Plain, Outer Banks, and northern Coastal Plain/Piedmont edge; disjunct to the lower Piedmont of Richmond County (1999) and Cabarrus County (2007).

ME to IN, CO, and CA, south to FL, TX, and AZ.
AbundanceFairly common to locally common (to very common) close to the coast in tidal regions; less numerous farther inland, and quite rare in the western Coastal Plain and eastern Piedmont region.
HabitatFreshwater marshes, interdune marshes and pondshores, river shores and marshes, wet ditches. The Richmond County population is in an old meander of the Pee Dee River; the Cabarrus County population is from a drained beaver pond.
PhenologyFlowering and fruiting August-November.
IdentificationSmooth Beggarticks is our showiest Bidens species, with ray florets 17 mm or more long (vs. 15 mm or less in Nodding Bur-marigold [B. cernua]). The leaves are not dissected, as they are in Bearded Beggarticks (B. aristosa), and plants are shorter (mostly 1-2 feet tall vs. 2-4 feet tall).
Taxonomic CommentsNone

Other Common Name(s)Smooth Bur-marigold, Larger Bur-marigold
State RankS3 [S4]
Global RankG5
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