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

85. Elymus magnipodus (L. B. Cai) S. L. Chen & G. Zhu, Novon. 12: 427. 2002.

大柄披碱草 da bing pi jian cao

Roegneria magnipoda L. B. Cai, Acta Phytotax. Sin. 35: 164. 1997.

Culms erect, 20–35 cm tall, 1–2.5 mm in diam., 2-noded, smooth, glabrous. Leaf sheath usually longer than internode except on upper leaves, glabrous; ligule very short, papery; leaf blade involute, 4–7 × 0.15–0.25 cm, both surfaces glabrous or adaxial surface scabrous. Spike erect, lax, 6–9 cm; rachis glabrous; internodes 10–20(–28) mm. Spikelets 1 per node, yellowish green, 15–25 mm excluding awns, with 6–8 florets; pedicel 1–2.5 mm. Glumes subequal, 4.5–7 mm, 4–7-veined, abaxially glabrous, apex acute. Lemma lanceolate, abaxially smooth, glabrous; first lemma 9–10 mm; awn erect or slightly recurved, 9–15 mm. Palea slightly shorter than or equaling lemma, ciliolate along keels, apex truncate or subrounded. Anthers black, 2–3 mm. Ovary obovate, apex pubescent. Fl. and fr. Jun–Jul.

* River banks; ca. 3100 m. Qinghai (Golmud).


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