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..2 Leaf sheaths and culm axis pilose with hairs 3-5 mm long; hairs on leaf surfaces also 3-5 mm long; leaves 2.5-10 cm long; longest leaves with long-acuminate tip; lemma 7-veined
..2 Leaf sheaths and culm axis glabrate to pilose (usually sparsely, but dense at sheath summit) with hairs < 1.5 mm long; hairs on leaf surfaces also < 1.5 mm long; leaves 1.5-6 cm long; longest leaves with acute to acuminate tip (but not long-acuminate); lemma (7-) 9-11-veined.