Common Name: buttercup, smallflower
Species: Ranunculus abortivus L.
Bayer Code: RANAB

Smallflower buttercup may resemble a wild violet in its early growth, but later in the life cycle it produces upright stems that are slender and branch from the base of the plant. Lower leaves are dark green and rounded, while upper leaves are a brighter green and elongate with occasional lobes. Flowers, which appear from April to August, are tiny and yellow with five petals. The plant can grow to heights of 6 - 24 inches. Smallflower buttercup reproduces by seed. This weed grows in both dry and moist environments and is commonly found in fields, waste areas, and wooded habitats. It can be distinguished from hairy buttercup by the lack of hairs on its leaves. In addition, hairy and bulbous buttercup have lobed leaves, whereas most of the lower leaves of smallflower buttercup are unlobed.
smallflower buttercup
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smallflower buttercup
smallflower buttercup
smallflower buttercup
smallflower buttercup
Growth Season winter annual weed OR biennial weed OR perennial weed 
Growth Habit upright 
Leaflet Number one 
Leaf Margin smooth OR wavy/crinkledmost of the lower leaves exhibit crinkled leaf margins, while upper leaves tend to have smooth margins
Leaf Hairs none 
Leaf/Leaflet Shape heart/kidney/spade OR linear/oblongmost of the lower leaves are heart-shaped and unlobed, whereas the upper leaves tend to be elongated and occasionally lobed
Leaf Width   
Leaf Venation pinnate 
Leaf Arrangement opposite OR whorled or basal rosette 
Root Type fibrous 
Flower Color yellow