Poa annua

Common Name: 
annual bluegrass, speargrass, wintergrass
Scientific Name: 
Poa annua L.
Family Name: 
Poaceae (Graminae) - Grass Family
Identification Notes
Life Cycle
introduced winter annual, reproducing by seed
Culms
smooth, dense tufts, spreading, lower nodes often rooting
Culms of Annual Bluegrass
Culms of Annual Bluegrass
Culms of Annual Bluegrass
Culms of Annual Bluegrass
Culms of Annual Bluegrass
Culms of Annual Bluegrass
Leaves
blades smooth, boat-shaped tip, light green, often with short wrinkled segment mid-blade, folded in bud; auricles absent; ligule membranous, white, peaked; sheaths smooth, compressed
Leaves of Annual Bluegrass
Seedheads
panicle, cone-shaped, open, light green to white, branched spikelets
Seedheads of Annual Bluegrass