Annual bluegrass - Poa annua
Poa annua L.
Poaceae (Grass family)
Clump-forming winter or summer annual.
Hairless, soft, light green leaves are folded in the bud and lack auricles. Leaves have linear margins (sides parallel) and distinctive boat-shaped tips.
Slightly pointed membranous ligule.
Upright, bending, up to 1-foot-tall stems are clump-forming, enlarge by tillering and may root at the lower nodes.