Poa L.

Leaves convolute. Plants found adjacent to the coast Poa

Perennials

Basal internodes not bulbous or thickened

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Internodes of the culms strongly compressed, 2-sided. Stiff perennial up to 60 cm high, spreading by wiry rhizomes. Leaves glabrous; blades up to 12 cm long, 1–4 mm wide; ligule membranous, obtuse, 0.5–3 mm long. Panicle stiff, usually contracted, up to 10 cm long, c. 3 cm wide. Spikelets with 3–10 florets, 3–8 mm long, green or purplish. Widespread. Pastures; weed. Introd. from Europe. Fl. summer. Canada Blue Grass Poa compressa

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Internodes terete or slightly compressed