Smallflower Buttercup

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Smallflower buttercup (Ranunculus abortivus) 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.

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.

Species Data

    • winter annual or biennial or perennial weed
    • one
    • most of the lower leaves exhibit crinkled leaf margins, while upper leaves tend to have smooth margins
      Figure 2
    • most of the lower leaves are heart-shaped and unlobed, whereas the upper leaves tend to be elongated and occasionally lobed
    • pinnate
    • fibrous
Smallflower buttercup  growth habit.
Smallflower buttercup leaf margin.
Smallflower buttercup leaf arrangement.
Smallflower buttercup leaf arrangement.
Smallflower buttercup leaf arrangement.
Smallflower buttercup flower color.