Greatest nuisance in moist shady areas. Hard to kill. Grows vigorously in summer, usually in patches. Hard to kill. Restrict lawn watering, improve drainage.
Seed capsules resemble tiny cucumbers.
Common, especially in poor, thin lawns. 2,4-D. Maintain proper soil fertility. Keep soil properly limed and fertilized. All have creeping stems, opposite leaves, and small blue or white, four-petalled flowers. The familiar common violet, with its blue or purple flowers and heart-shaped leaves.