Vascular Plants of North Carolina
Account for Corn Buttercup - Ranunculus arvensis   L.
Members of Ranunculus with account distribution info or public map:
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Section 6 » Order Ranunculales » Family Ranunculaceae
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AuthorL.
DistributionPiedmont, with one record from the southwestern mountains.

Native of Eurasia; in N.A. scattered across the U.S.
AbundanceRare on the landscape, except for Cabarrus County, where taken from several locations.
HabitatFallow cropfields (especially wheat), fields, roadsides, disturbed suburban lots, roadsides, river bottomlands.
PhenologyFlowering and fruiting April-June.
IdentificationCorn Buttercup is best identified by its papillose seeds (tiny bumps) and smallish bright yellow flowers -- about 2/5-inch across. The seed beak is more than 2 mm long (vs. less than 2 mm long in R. sardous). All leaves -- basal and cauline -- are strongly dissected.
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State RankSE
Global RankGNR
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