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Weeds are described as plants growing where they are not wanted. They can disrupt the appearance and use of lawns, recreational areas, and other turfs. In addition, they compete with desired turfgrasses for space, water, nutrients, and light. Turf weeds may be grasses, grass-like plants (rushes and sedges), or broadleaf plants with annual, biennial, and/or perennial life cycles.

Weeds are classified as summer annuals, winter annuals, biennials, and perennials. Annuals complete their life cycles in one season by flowering, maturing seed, and dying. Summer annuals germinate from late March through July, depending on the location. They flower in the summer and die in the fall. Winter annuals germinate in the fall and early winter and usually die with warm weather in the spring or summer; however, they may continue to grow into early summer in cool seasons. Biennial weeds have a two-year life cycle. They create vegetative structures (leaves, stems, and roots) during the first year, and reproductive structures (flowers and seeds) the second. Perennials live more than two years and may produce seed each season.

This page has a list of factsheets for weeds commonly found in turf.

Image Weed Type
Blackberry Blackberry Broadleaf
Blackseed Plantain Blackseed Plantain Broadleaf
Broadleaf Plantain Broadleaf Plantain Broadleaf
Buckhorn Plantain Buckhorn Plantain Broadleaf
Bulbous Buttercup Bulbous Buttercup Broadleaf
Carolina False Dandelion Carolina False Dandelion Broadleaf
Carolina Geranium Carolina Geranium Broadleaf
Carpetweed Carpetweed Broadleaf
Cat’s Ear Dandelion Cat’s Ear Dandelion Broadleaf
Common Chickweed Common Chickweed Broadleaf
Common Dandelion Common Dandelion Broadleaf
Common Lespedeza Common Lespedeza Broadleaf
Common Ragweed Common Ragweed Broadleaf
Common Vetch Common Vetch Broadleaf
Corn Speedwell Corn Speedwell Broadleaf
Cudweed Cudweed Broadleaf
Curly Dock Curly Dock Broadleaf
Cutleaf Evening Primrose Cutleaf Evening Primrose Broadleaf
Dichondra Dichondra Broadleaf
Dogfennel Dogfennel Broadleaf
Dollarweed Dollarweed Broadleaf
Doveweed Doveweed Broadleaf
Facelis Facelis Broadleaf
Field Pansy Field Pansy Broadleaf
Florida Betony Florida Betony Broadleaf
Ground Ivy Ground Ivy Broadleaf
Hairy Bittercress Hairy Bittercress Broadleaf
Hairy Buttercup Hairy Buttercup Broadleaf
Hairy Vetch Hairy Vetch Broadleaf
Henbit Henbit Broadleaf
Hop Clover Hop Clover Broadleaf
Horseweed Horseweed Broadleaf
Indian Mock Strawberry Indian Mock Strawberry Broadleaf
Ivyleaf Speedwell Ivyleaf Speedwell Broadleaf
Knawel Knawel Broadleaf
Lawn Burrweed Lawn Burrweed Broadleaf
Mouseear Chickweed Mouseear Chickweed Broadleaf
Mugwort Mugwort Broadleaf
Oldfield Toadflax Oldfield Toadflax Broadleaf
Parsley Piert Parsley Piert Broadleaf
Persian Speedwell Persian Speedwell Broadleaf
Pink Purslane Pink Purslane Broadleaf
Prickly Lettuce Prickly Lettuce Broadleaf
Prostrate Knotweed Prostrate Knotweed Broadleaf
Purple Deadnettle Purple Deadnettle Broadleaf
Red Sorrel Red Sorrel Broadleaf
Roundleaf Greenbriar Broadleaf
Sericea Lespedeza Sericea Lespedeza Broadleaf
Smallflower Buttercup Smallflower Buttercup Broadleaf
Spiny Sowthistle Spiny Sowthistle Broadleaf
Spotted Spurge Spotted Spurge Broadleaf
Virginia Buttonweed Virginia Buttonweed Broadleaf
White Clover White Clover Broadleaf
Wild Garlic Wild Garlic Broadleaf
Wild Violet Wild Violet Broadleaf
Yellow Woodsorrel Yellow Woodsorrel Broadleaf
Annual Bluegrass Annual Bluegrass Grass
Annual Ryegrass Annual Ryegrass Grass
Bahiagrass Bahiagrass Grass
Barnyardgrass Barnyardgrass Grass
Bermudagrass Bermudagrass Grass
Broomsedge Broomsedge Grass
Crowfootgrass Crowfootgrass Grass
Dallisgrass Dallisgrass Grass
Goosegrass Goosegrass Grass
Green Foxtail Green Foxtail Grass
Japanese Stiltgrass Japanese Stiltgrass Grass
Johnsongrass Johnsongrass Grass
Large Crabgrass Large Crabgrass Grass
Nimblewill Nimblewill Grass
Orchardgrass Orchardgrass Grass
Perennial Ryegrass Perennial Ryegrass Grass
Rough Bluegrass Rough Bluegrass Grass
Sandbur Sandbur Grass
Smooth Crabgrass Smooth Crabgrass Grass
Tall Fescue Tall Fescue Grass
Thin Paspalum Thin Paspalum Grass
Velvetgrass Velvetgrass Grass
Yellow Foxtail Yellow Foxtail Grass
Annual Sedge Annual Sedge Sedge
Cylindric Sedge Cylindric Sedge Sedge
Globe Sedge Globe Sedge Sedge
Green Kyllinga Green Kyllinga Sedge
Purple Nutsedge Purple Nutsedge Sedge
Yellow Nutsedge Yellow Nutsedge Sedge