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Quackgrass

(More Lawn Weeds) Quackgrass Agropyron repens Lifecycle Perennial, cool season weed. Growth habit Creeping, can grow up to 3 ft. tall; blue-green color. Leaf blades have rough texture. Reproduction Sharp-tipped, creeping rhizomes. The seed head forms in the summer and resembles wheat. Developing...

Orchardgrass

(More Lawn Weeds) Orchardgrass Dactylis glomerata Life cycle Perennial, cool season weed. Growth habit Clump forming; coarse texture up to 3 ft. tall; faster growing and lighter blue-green than turf. Reproduction Spreads by seed. Conditions that favor growth Seeds usually come into lawn with...

Yellow nutsedge

(More Lawn Weeds) Yellow nutsedge Cyperus esculentus Life cycle Perennial; Classified as a sedge not technically a grass. Growth habit Leaves shiny, yellow-green, narrow, and grass-like; stems are 3-sided, triangular in cross section. Reproduction From small nutlets (tubers) attached to rhizomes/...

Nimblewill

(More Lawn Weeds) Nimblewill Muhlenbergia schreberi Japanese stiltgrass (left), Nimblewill (right) Nimblewill Photo: Ohio St. Weed Lab, The Ohio State University, bugwood.org Life cycle Perennial, warm season grass. Nimblewill goes dormant in the fall and looks straw-like then begins to green up...

Goosegrass

(More Lawn Weeds) Goosegrass Elusine indica Life cycle Summer annual. Growth habit Grows up to 2' tall; entire plant appears flattened; light green to white at the base of stems. Reproduction Seeds. seedheads Conditions that favor growth Mowing the lawn too short. Management In Lawns Cultural...

Giant foxtail

Giant foxtail Setaria faberi Foxtail seed heads Life cycle: summer annual Growth habit: grows up to 5' tall; leaves and seed head arching Reproduction: seed; bristly spike-like foxtail Conditions that favor growth: untended and unmowed open areas Cultural control: mow before seed heads form

Crabgrass

(More lawn weeds) Large crabgrass Digitaria sanguinalis Life cycle Summer annual. Growth habit Grows up to 2 ft. tall; decumbent growth habit; swollen nodes. may root at nodes. Dies after the first frost in the fall. Reproduction By seed. Seeds germinate from spring through late summer. Conditions...

Bermudagrass

(More Lawn Weeds) Bermudagrass Cynodon dactylon Life cycle Perennial, warm season grass; also called wiregrass. Growth habit Grows up to 2 ft. tall; goes dormant in winter and turns brown. Reproduction Spreads aggressively by strong, wiry stolons (above ground runners). Conditions that favor growth...

Wild violet

(More Lawn Weeds) Wild violet Viola papilionacea Life cycle Perennial. Growth habit Low growing < 1-ft. from basal crown; heart-shaped leaves; flowers blue to violet, occasionally white, on leafless stalks. Reproduction Seed and short, branching rhizomes. Conditions that favor growth Thrives in...

Wild garlic-Wild onions

(More Lawn Weeds) Wild garlic Allium vineale Life cycle Perennial from bulbs. Growth habit Grass-like, thin leaves. W ild garlic leaves are round and hollow , while those of wild onion are flat and solid . Reproduction Produces clusters of many underground bulbs when mowed. Conditions that favor...

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