A bulb weed that pops up bright green in winter lawns and smells like onion when cut.

Flat, solid leaves with a strong onion smell when crushed. It sends up clusters of pink or white flowers, and unlike its cousin wild garlic, it has no small bulblets forming at the top of the plant.
Often mistaken for: Wild garlic (which has round, hollow leaves and small bulblets, unlike wild onion's flat, solid leaves)
Shows up as green shoots from fall through spring while your lawn is dormant, then flowers in late spring or summer.
Grows in bermuda, centipede, St. Augustine, zoysia, fescue, and bluegrass lawns.

A tough perennial weed with pretty purple flowers that's notoriously hard to get rid of once established in a lawn.

A dandelion look-alike that pops up in thin or stressed lawns and flowers most of the growing season.

A winter weed that pops up in thin lawns, covering them in purple flowers by late winter.

A bulb-forming weed with a strong garlic smell that pops up bright green in dormant lawns and can take years to fully clear.