To identify weeds, look at the type of leaf, flower, and root system. For example, weeds tend to have a thick root, making them difficult to remove, or a creeping fibrous root system that spreads quickly. Weeds spread easily and quickly and take root where you least want them.

When examining weeds in grass, you’ll notice they vary greatly. Some have broad, fleshy leaves, while others resemble grass. Weeds can grow upright or spread across the ground. Additionally, annual weeds sprout from seeds each year and die after seeding.