Barnyard Grass
Echinochloa crus-galli · Warm-season, Annual, C4 grass
AI-generated identification · may be incorrect
Grass Category
Invasive/Weed Grass, Wetland/Riparian Grass, Erosion Control
Hardiness Zones
Thrives across USDA Hardiness Zones 2 through 11; exhibits high heat tolerance and dies back with the first hard frost.
Grass Family
Poaceae, subfamily Panicoideae, tribe Paniceae
Variety / Cultivar
Wild type (no specific named agricultural cultivars for turf use)
About This Grass
An aggressive summer annual grass featuring coarse, upright stems that can reach 2 to 5 feet in height. Foliage is medium to light green, sometimes tinted with purple at the base. Forms dense, untidy stands in wet areas with coarse texture.
Blade Characteristics
Blades are flat, smooth, 3 to 15 mm wide, with a prominent midvein and scabrous margins. Lacks a ligule (ligule absent) and lacks auricles. Vernation is rolled.
Root System
Fibrous, moderately deep root system with occasional rooting at the lower nodes. Fast establishment from seed in wet conditions. Forms weak sod but excellent for holding loose damp soils.
Growing Information
Origin Region
Native to tropical and temperate Asia and Europe; now widely naturalized globally in moist, disturbed soils.
Growth Habit
Bunch-type, erect or decumbent at the base, clump-forming without significant spreading rhizomes or stolons.
Sunlight & Water Needs
Requires full sun and high moisture soils. Highly intolerant of drought. Thrives in saturated, poorly drained soils, ditches, and pond edges with neutral to slightly acidic pH.
Mowing & Maintenance
High maintenance weed if found in lawns; can tolerate low cutting temporarily by regrowing from basal nodes. Typically managed via selective herbicides or manual removal in turf settings.
Special Characteristics
Extremely prolific seed producer, highly competitive in wet soils, moderate salt tolerance, poor wear tolerance compared to formal turfgrasses, highly invasive in agricultural fields (especially rice paddies).
Ecological Information
Introduced species in North America acting primarily as a weed, though its seeds provide an important food source for waterfowl and wetland birds. Exceptional ability to colonize disturbed wet soils and filter runoff.