life
cycle - annual, reproducing by seed
culms -
upright, somewhat thick, smooth, flattened, often reddish-purple
growth
habit, seedlings
leaves -
blades smooth, conspicuous white mid-rib, margins sometimes
wavy, rolled in bud; ligule absent; sheaths smooth, flattened,
open, reddish purple ligules absent 1, ligules absent 2
seedheads -
panicle, straight or upward spreading branches, green to purple,
spikelets compact on branches and bristled seedheads 1, seedheads 2, seedheads 3