Common Name: barnyardgrass
Species: Echinochloa crus-galli (L.) Beauv.
Bayer Code: ECHCG

Barnyardgrass is an upright summer annual weed of turfgrass. It is found in moist, disturbed sites, marshes, and wet turf areas. Barnyardgrass can most easily be distinguished from other grasses by its seedhead, and the fact that it has no ligule.
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barnyardgrass seedhead
barnyardgrass seedhead
barnyardgrass seedhead
barnyardgrass crown
Seedhead / Flower panicleseedhead often purple, spikelets end in a bristle
Vernation Type rolledleaves rolled in the bud
Ligule Type absent 
Growth Season / Life Cycle summer annual weed 
Auricle Type absent 
Leaf Blade Tip Shape sharp-pointededges rough, blades all in same plane
Leaf Blade Width broad, greater than 0.2 in0.4 - 0.8 inches (10 - 20 mm) wide
Stolon Presence absent 
Rhizome Presence absent 
Collar Type continuousmay have hair on collar, white band on collar
Sheath Margin split with overlapping margins 
Sheath Type flattenedsheath occasionally has short hairs; red- to purple-tinged at base