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FOC | Family List | FOC Vol. 22 | Poaceae | Hordeum

5. Hordeum jubatum Linnaeus, Sp. Pl. 1: 85. 1753.

芒颖大麦 mang ying da mai

Critesion geniculatum Rafinesque, nom. illeg. superfl.; C. jubatum (Linnaeus) Nevski; Elymus jubatus (Linnaeus) Link.

Plants perennial, tufted, smooth and glabrous. Culms erect or decumbent at base, 30–60 cm tall, ca. 2 mm in diam., 3–5-noded. Leaf blade flat, 6–12 × 0.15–0.4 cm. Spike green or purplish green, nodding, 5–10 cm including awns, soft; rachis brittle. Lateral spikelets: reduced to 1–3 spreading awns, rarely male. Central spikelet:perfect; glumes spreading, awnlike, 2.5–6.5 cm, much longer than floret; lemma lanceolate 5–6(–8) mm, awn to 7 cm; palea equaling lemma. Fl. and fr. May–Aug. 2n = 28*.

Meadows, moist land. Heilongjiang, Liaoning [temperate regions of the world].


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