Weeds: Annual bluegrass Categories: A-B Grasses Weeds Last review date: 2026-07-07 05:53 Scientific name: Poa annua Family: Poaceae (Graminae) Cycle: Annual/Perennial Plant type: Grass Other Common Names: Annual meadow grass, Low spear grass, Meadow grass, Six-week grass, Annual blue Annual bluegrass Photo by: T. Miller Biology Annual bluegrass leaves are folded in the bud and […]
Weeds: Barnyardgrass Categories: A-B Grasses Weeds Last review date: 2026-07-07 09:56 Scientific name: Echinochloa crus-galli Family: Poaceae (Graminae) Cycle: Summer annual Plant type: Grass Other Common Names: Barnyard millet Barnyardgrass Photo by: J.A. Kropf Biology Barnyardgrass grows in clumps up to five feet tall. Leaf blades are smooth, flat, and broad (about 1⁄2 inch or […]
Weeds: Bentgrass, creeping Categories: A-B Grasses Weeds Last review date: 2026-07-07 10:05 Scientific name: Agrostis stolonifera Family: Poaceae (Graminae) Cycle: Perennial Plant type: Grass Other Common Names: Carpet bentgrass, Creeping bent, Fiorin Spreading bent Creeping bentgrass Photo by: B.M. Johnson Biology Creeping bentgrass is a low-growing, perennial grass. Unmowed plants can reach 8 to 20 […]
Weeds: Bermudagrass Categories: A-B Grasses Weeds Last review date: 2026-07-07 10:13 Scientific name: Cynodon dactylon Family: Poaceae (Graminae) Cycle: Perennial Plant type: Grass Other Common Names: Bermuda Grass, Hybrid Bermudagrass Bermudagrass blades Photo by: D.G. Swan Biology Bermudagrass is a warm-season perennial grass that typically is prostrate and spreads to form dense patches. Spread occurs […]
Weeds: Crabgrass Categories: C-E Grasses Weeds Last review date: 2026-07-08 08:04 Scientific name: Digitaria spp. Family: Poaceae (Graminae) Cycle: Annual Plant type: Grass Other Common Names: Finger Grass, Crop Grass Crabgrass Photo by: R. Parker Biology Large crabgrass (Digitaria sanguinalis) may reach up to two feet tall but is often prostrate. Stems lying along the […]
Weeds: Downy brome Categories: C-E Grasses Weeds Last review date: 2026-07-08 11:08 Scientific name: Bromus tectorum Family: Poaceae (Graminae) Cycle: Winter annual Plant type: Grass Other Common Names: Cheatgrass, Bronco grass, Downy chess, Drooping brome, June grass, Early chess, Military chess Downy brome – cheatgrass Photo by: J.A. Kropf Biology Downy brome is a winter […]
Weeds: Foxtail Categories: F-H Grasses Weeds Last review date: 2026-07-08 12:31 Scientific name: Setaria spp. Family: Poaceae (Graminae) Cycle: Annual Plant type: Grass Other Common Names: Cattail Grass, Pigeon Grass, Yellow Bristlegrass, Yellow Foxtail, Bottle Grass, Green Bristlegrass, Green Foxtail, Green Millet, Pigeongrass, Wild Millet Yellow foxtail Photo by: D.G. Swan Biology Three species of […]
Weeds: Quackgrass – Elymus repens (Elytrigia repens, Agropyron repens) Categories: Grasses Pr-Sc Weeds Last review date: 2026-06-07 10:15 Scientific name: Elymus repens (Elytrigia repens, Agropyron repens) Family: Poaceae (Graminae) Cycle: Perennial Plant type: Grass Quackgrass Photo by: D.G. Swan Biology Quackgrass is a perennial grass which spreads by both seeds and rhizomes, forming dense clumps […]
Weeds: Reed canarygrass – Phalaris arundinacea Categories: Grasses Pr-Sc Weeds Last review date: 2026-06-07 10:15 Scientific name: Phalaris arundinacea Family: Poaceae (Graminae) Cycle: Perennial Plant type: Grass Reed canarygrass emerging in spring Photo by: B.M. Johnson Biology An aggressive plant, reed canarygrass grows from a large root system. It spreads rapidly by seeds and rhizomes […]
Weeds: Ryegrass, annual (Italian ryegrass) – Lolium perenne ssp. multiflorum Categories: Grasses Pr-Sc Weeds Last review date: 2026-06-07 10:17 Scientific name: Lolium perenne ssp. multiflorum Family: Poaceae (Graminae) Cycle: Annual Plant type: Grass Ryegrass spikelets Photo by: T.W. Miller Biology Annual ryegrass is upright, growing in clumps often reaching four feet tall. The flat leaf […]
