Comments
(
anglais
)
fourni par eFloras
Four varieties occur in China. In addition, Elymus dahuricus var. brevisetus Ohwi (J. Jap. Bot. 19: 168. 1943) was described from N Shanxi (Ningwu), but no specimens have been seen by the authors.
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Comments
(
anglais
)
fourni par eFloras
Plants with fewer-flowered spikelets and shorter glumes and lemmas have been separated as var.
micranthus, but variation seems to be more or less continuous between the two extremes.
2000-4700 m.
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Description
(
anglais
)
fourni par eFloras
Culms erect or geniculate at base, 40–140 cm tall, 2–4-noded. Leaf sheath glabrous, or densely pilose at base; leaf blade ± glaucous, flat, rarely rolled, 5–25 × 0.5–1(–1.2) cm, abaxial surface smooth, adaxial surface smooth or scabrous. Spike erect, somewhat dense, 14–18 × 0.5–1 cm; rachis margin ciliolate. Spikelets green or purplish green, usually stramineous at maturity, (1 or)2 per node, 9–15 mm, with 2–5 florets. Glumes lanceolate or linear-lanceolate, 7–10 mm, 3–5-veined, scabrous or scabrous-hirsutulous along veins, apex acuminate or with awn to 5 mm. Lemma lanceolate, puberulent, pubescent, or densely hirsutulous throughout; first lemma 7–9 mm; awn straight or recurved, 2–20 mm. Palea equaling lemma, ciliate along keels, ± pubescent between keels, apex narrowly truncate. Fl. and fr. Jun–Aug.
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Description
(
anglais
)
fourni par eFloras
Tufted perennial; culms 30-130 cm high, erect, slender or stout. Leaf-blades usually flat, convolute when dry, 10-30 cm long, 3-9 mm wide, smooth or scaberulous. Spike erect or sometimes nodding, 7-23 cm long. Spikelets in pairs at the nodes of the rhachis; glumes elliptic, 6-11 mm long (including the awn), almost as long as the body of the lowest lemma, conspicuously 3-5-nerved, acute or produced into a short awn up to 2 mm long; lemma elliptic, 6.5-11 mm long (excluding the awn), produced into a straight or slightly curved awn 8-15 mm long.
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Distribution
(
anglais
)
fourni par eFloras
Iran, C. Asia, N.W. India, Nepal, N. Asia, China.
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Distribution
(
anglais
)
fourni par eFloras
Hebei, Heilongjiang, Henan, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Bhutan, India, Japan, Kazakhstan, Korea, Kyrgyzstan, Mongolia, Nepal, Russia, Turkmenistan, Uzbekistan; SW Asia].
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Distribution
(
anglais
)
fourni par eFloras
Distribution: Pakistan (N.W.F.P., Gilgit & Kashmir); Central Asia from Afghanistan to Siberia, Mongolia and China.
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Elevation Range
(
anglais
)
fourni par eFloras
2600-3000 m
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Flower/Fruit
(
anglais
)
fourni par eFloras
Fl. & Fr. Pr.: July-August.
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Habitat
(
anglais
)
fourni par eFloras
Forest glades, scrub, mountain slopes, valleys, meadows, pebbles, sometimes roadsides and field margins; ca. 2600 m.
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Elymus dahuricus
(
anglais
)
fourni par wikipedia EN
Elymus dahuricus (also called Dahurian wildrye[2] or asiatic wildrye)[3] is a species of perennial herb and a member of the flowering plant family Poaceae.[1][4]
The species was first described by Nikolai Turczaninow (sometimes written Nikolai Turczaninov) in 1838.[5]
The species is widespread in central and Eastern Asia.[6] This species has been introduced in the Great plains of the United States and the prairie provinces in Canada.[7] It has also been introduced to the Baltic states.[1]
It has several subspecies and varieties.[1]
References
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^ a b c d "Elymus dahuricus Turcz. ex Griseb". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2021-09-05.
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^ "Dahurian wild rye - Encyclopedia of Life". eol.org. Retrieved 2021-11-03.
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^ Agriculture Handbook. U.S. Department of Agriculture. 1949. p. 27.
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^ Moore, Kenneth J.; Collins, Michael; Nelson, C. Jerry; Redfearn, Daren D. (2020-05-29). Forages, Volume 2: The Science of Grassland Agriculture. John Wiley & Sons. p. 318. ISBN 978-1-119-43661-4.
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^ Turczaninow, NS (1838). "Elymus Dahuricus". Bulletin de la Société Impériale des naturalistes de Moscou. Moscou. 11 (1): 105.
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^ Barkworth, Mary E.; Anderton, Laurel K.; Capels, Kathleen M.; Long, Sandy; Piep, Michael B. (2007-09-30). Manual of Grasses for North America. University Press of Colorado. ISBN 978-0-87421-778-0.
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^ Mansfeld, Rudolf (2001-04-10). Mansfeld's Encyclopedia of Agricultural and Horticultural Crops: (Except Ornamentals). Springer Science & Business Media. p. 2535. ISBN 978-3-540-41017-1.
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Elymus dahuricus: Brief Summary
(
anglais
)
fourni par wikipedia EN
Elymus dahuricus (also called Dahurian wildrye or asiatic wildrye) is a species of perennial herb and a member of the flowering plant family Poaceae.
The species was first described by Nikolai Turczaninow (sometimes written Nikolai Turczaninov) in 1838.
The species is widespread in central and Eastern Asia. This species has been introduced in the Great plains of the United States and the prairie provinces in Canada. It has also been introduced to the Baltic states.
It has several subspecies and varieties.
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