Common Name
Marsh Millet, Channel Millet
Family
Poaceae
Notes
Annual grass to 2m tall. Leaves with a hairless sheath at the base. Ligule absent. Leaves 10-40cm long, 6-15mm wide, flat, hairless, margins rough, tips pointed. Spikelets green to purple, 3-5mm long. Seeds with 0 or sometimes with 1 awn. Mature seed groups cylindrical.
Description in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales page 90
PlantNET description with line drawings and photos of dried specimens: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Echinochloa~inundata
ausgrass2 description with photos: http://ausgrass2.myspecies.info/content/echinochloa-inundata