Poa L.
Annual up to 30 cm high. Panicle ovate to triangular in outline, spreading. Leaves bright green; blades up to 14 cm long, c. 5 mm wide. Spikelets 3–10 mm long with 3–10 florets. Widespread. Weed in lawns and pastures. Introd. from Europe. Fl. winter. Winter Grass Poa annua