Agrostis Desf.

Palea absent or up to half as long as the lemma. Lemma usually glabrous and awnless Agrostis

Palea c. 50% the length of lemma

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Ligule acute or obtuse. Glumes not falling with the floret Agrostis stolonifera

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Ligule truncate, 2–3 mm long. Spikelets falling whole. Plants up to 60 cm high. Leaf blades up to 18 cm long, 2–10 mm wide. Panicle up to 15 cm long. Near or in water. Introd. from S. Europe and Asia. Fl. summer. Water Bent Agrostis viridis