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BUTTERCUP, BULBOUS
 Buttercup, Bulbous
[Ranunculus bulbosus L.]
DESCRIPTION
Two of
the common buttercups found in North Carolina are hairy buttercup and bulbous
buttercup. Hairy buttercup appears to be predominant in the Piedmont and
mountain regions, while bulbous buttercup is readily found in the Piedmont and
Coastal Plain regions. Vegetative characteristics of bulbous buttercup are
similar to those of hairy buttercup except for the bulb-like swelling at the
base of the stem. This swelling is roundish and white, slightly flattened at
the top and bottom. Smallflower buttercup is also found in North Carolina.
Whereas bulbous and hairy buttercup have lobed leaves, most of the lower leaves
of smallflower buttercup are unlobed.
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Characteristic
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Description
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Growth Season
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winter annual or perennial weed
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Growth Habit
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upright; more prostrate in mowed turf situations; rosette
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Leaflet Number
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one
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Leaf Margin
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divided into three lobes
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Leaf Hairs
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dense hairs on upper surface
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Leaf/Leaflet Shape
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oval/egg-shaped/elliptical
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Leaf Width
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1/2 - 2 inches
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Leaf Venation
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palmate
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Leaf Arrangement
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alternate
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Root Type
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bulbous
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Flower Color
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yellow
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bulbous
buttercup, underside of leaf
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bulbous
buttercup roots
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Note: Still not
sure this is the right weed? The Turf
& Weed Identification Decision Aid may help. Check the TurfFiles glossary for definitions
of unfamiliar terms.
CULTURAL
CONTROL
Perennial
broadleaf turf weeds are capable of living more than two years. They thrive in
weak, thin turf; golf fairways and roughs; home lawns; playfields; and
industrial grounds. Proper turf maintenance is the key to control of this
weed. First, select adapted turfgrass cultivars for your area and then
properly fertilize, mow, and water to encourage dense growth.
CHEMICAL
CONTROL
Bulbous buttercup can be
controlled with two, three, and four way broadleaf herbicides in the fall or
spring.
© North Carolina State University. This information sheet was prepared
by Fred Yelverton, Bridget R. Lassiter, Gail G. Wilkerson, Leon Warren, Travis Gannon, Jenifer J. Reynolds, and Gregory S. Buol. Department of Crop
Science, College of Agriculture & Life Sciences, North Carolina State
University. Prepared July 15, 2008. Available on-line at
www.turffiles.ncsu.edu. This publication was made possible through a grant
provided by the Center for Turfgrass Environmental Research & Education
(CENTERE) whose purpose is to support worthwhile projects that will benefit
both the private sector and the public, and protect the environment.
KEYWORDS FOUND IN THIS ARTICLE:
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