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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All spikelets in triplet fertile and awned. Inflorescence 5–7 cm long. Awns up to 10 cm long. Cultivated; weed or in pastures. Introd. from Europe and Asia. Fl. summer. Six row Barley Hordeum vulgare