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Plant Form: Variable annual grass.
Size: Up to 1 m tall.
Stem: Clumped, growing from nodes.
Leaves: Deep green, flat, no ligule (joint structure), tapering and slightly hairy near stem, with prominent midrib.
Flowers: Up to 15 spikelets in lance shaped heads, not in obvious rows. Green and tinged with reddish purple.
Fruit and Seeds: Pale brown when ripe.
Habitat: Disturbed areas, riverbanks, wetlands.
Distinguishing Features: Spikelets not in obvious rows, wider leaves, and presence of awns on seed differ from Awnless barnyard grass (Echinochloa colona).