Gramineae
Annual Bluegrass

Poa annua L.

Small tufted to clumped winter annual. Leaf blade, smooth on both surfaces, with two distinct, clear lines, one on each side of the midrib. Leaf tip keeled or boat-shaped. Ligule membranous. Light green to whitish spikelets that lack cottony hairs, are arranged on branches, one to two per node, in dense to open flower clusters. Reproduces by seed. Found throughout the world.
Annual Bluegrass Annual Bluegrass