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14. Elymus ciliaris (Trinius ex Bunge) Tzvelev, Novosti Sist. Vyssh. Rast. 9: 61. 1972.
纤毛披碱草 xian mao pi jian cao
Culms solitary or tufted, usually geniculate at base, sometimes erect, 40–130 cm tall, 1–5 mm in diam. Leaf sheath glabrous, or pilose at base; leaf blade flat, 9–25 × 0.3–1 cm, glabrous to scabrous, pilose or pubescent, or densely so. Spike erect or nodding, 10–22 cm; rachis scabrous, margin hispid. Spikelets 1(or 2) per node, green, 10–22 mm excluding awns, with 5–12 florets. Glumes oblong-lanceolate or elliptic-lanceolate, proximal one 6–11 mm, distal one 7–13 mm, 5–7-veined, scabrous, ciliate, or white hirsute along veins and margin, apex acute, acuminate, or pointed. Lemma oblong-lanceolate or oblong, scabrous to hispid or both, margin shortly ciliolate to long ciliate, apex pointed or awned; first lemma 7–12 mm; awn often reflexed, 1–30 mm. Palea oblong-ovate, much shorter than lemma, scabrous or ciliolate along keels distally, apex truncate. Fl. and fr. May–Jul.
Mountain slopes, moist meadows, roadsides; 1200–1600 m. Anhui, Fujian, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang [Japan, Korea, Mongolia, Russia].
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1 |
Leaf blade glabrous to scabrous |
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(2) |
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Leaf blade pubescent or pilose to densely so |
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(4) |
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2 (1) |
Lemma scabrous abaxially, margin ciliolate; palea scabrous along keels distally. |
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14c var. hackelianus |
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Lemma hispid abaxially, margin long ciliate; palea ciliolate along keels distally |
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(3) |
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3 (2) |
Lemma apex with awn 10–30 mm. |
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14a var. ciliaris |
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Lemma apex pointed or with awn 1–3(–7) mm. |
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14b var. submuticus |
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4 (1) |
Glumes elliptic-lanceolate, ciliate along veins and margin, apex pointed; leaf blade densely pilose on both surfaces. |
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14f var. lasiophyllus |
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Glumes oblong-lanceolate, scabrous or white hirsute along veins and margin, apex acute or acuminate; leaf blade densely pubescent on both surfaces and margin, or pubescent on both surfaces and white pilose along veins and margin |
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(5) |
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5 (4) |
Glumes scabrous along veins and margin; lemma scabrous or hispidulous abaxially, margin shortly ciliolate, first lemma 9–12 mm; culms 4–5 mm in diam.; leaf blade densely pubescent on both surfaces and margin. |
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14d var. amurensis |
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Glumes white hirsute along veins and margin; lemma punctate-scabrous and densely hispid throughout, first lemma 7–9.5 mm; culms 1–2 mm in diam.; leaf blade pubescent on both surfaces, white pilose along veins and margin. |
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14e var. hirtiflorus |
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