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Hordeum agriocrithon Aberg.
野生六棱大麦
Description from Flora of China
Hordeum vulgare Linnaeus subsp. agriocrithon (A. E. Åberg) Å. Löve.
Plants annual. Culms erect, 60–90 cm, smooth, glabrous. Leaf sheath usually glabrous; ligule 1–2 mm, membranous; auricles present, lanceolate; leaf blade flat, 10–15(–20) × 1–1.5 cm. Spike hexastichous, dense; rachis brittle. Spikelets all sessile, fertile, and similar. Glumes 5–6 × ca. 1 mm, densely puberulent; awn slender, ca. 10 mm. Lemma to 14 mm; awn ca. 15 mm. Caryopsis oblong, ca. 12 mm. Fl. and fr. Jun–Sep. 2n = 14.
Usually a weed in fields of Hordeum vulgare. Qinghai, Sichuan, Xizang [C and SW Asia, E Mediterranean region].
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