Hordeum L. >

Spikelets with 1 floret, in clusters of 3 at each node. Glumes linear, awn-like (Fig. 50) Hordeum
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Rhachis persistent, not fragmenting at maturity. Annual up to 1 m high
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Central spikelet of triplet fertile, lateral male. Male spikelets awnless. Awn on female spikelet to 15 cm long. Inflorescence not including awns, 6–10 cm long. Cultivated; weed or in pastures. Introd. from Europe and Asia. Fl. summer. Two-row Barley Hordeum distichon