Facts about Altai Wildrye (Leymus angustus)

Leymus angustus var. macroantherus (D.F. Cui) L.B. Cai & X. Su:
China (Asia)

Flora of China Editorial Committee. 2006. Fl. China 22: 1–733. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis. http://www.tropicos.org/Reference/1029690

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Leymus angustus (Trin.) Pilg.:
Canada (North America)
Kyrgyzstan (Asia)
Kazakhstan (Asia)
Mongolia (Asia)
Russian Federation (Asia)
Turkmenistan (Asia)
United States (North America)
China (Asia)
Uzbekistan (Asia)

Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone. 2003 and onwards. On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48. http://www.tropicos.org/Project/CNWG:. In R. J. Soreng, G. Davidse, P. M. Peterson, F. O. Zuloaga, T. S. Filgueiras, E. J. Judziewicz & O. Morrone Internet Cat. New World Grasses. Missouri Botanical Garden, St. Louis. http://www.tropicos.org/Reference/1024044
Flora of China Editorial Committee. 2006. Fl. China 22: 1–733. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis. http://www.tropicos.org/Reference/1029690
Soreng, R. J. 2003. Leymus. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48: 422–425. http://www.tropicos.org/Reference/1004689

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Elymus angustus Trin.:
Russian Federation (Asia)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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National Distribution

Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Morphology

Description

Culms solitary or tufted, 60–100 cm tall, 3- or 4-noded, glabrous, or pubescent below nodes and spike. Leaf sheath grayish green, usually shorter than internodes, smooth or slightly scabrous; ligule 0.5–1 mm, membranous, apex obtuse; leaf blade glaucous, rolled, 15–25 × 0.5–0.7 cm, stiff, abaxial surface subsmooth, adaxial surface smooth, apex acute. Spike erect, 15–20 × 0.7–1 cm; rachis pubescent. Spikelets 2(or 3) per node, 1–1.4 cm, with 2 or 3 florets; rachilla puberulent. Glumes covering base of first lemma, subequal or proximal glume slightly shorter, 10–13 mm, linear-lanceolate, 1-veined. Lemma lanceolate, obscurely 5–7-veined, densely puberulent, apex mucronate or acuminate; first lemma 10–14 mm including awn; callus pubescent. Palea slightly shorter than lemma, ciliate along keels. Anthers 2.5–3 mm. Fl. and fr. Jun–Aug.

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Comments

This species is used for forage.

The new combination Leymus angustus (Trin.) Pilger var. macroantherus (D. F. Cui) L. B. Cai & X. Su (Bull. Bot. Res., Harbin 27(6): 654. 2007) appeared after publication of the family treatment for the Flora of China.

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Diagnostic Description

Synonym

Elymus angustus Trinius in Ledebour, Fl. Altaic. 1: 119. 1829; Aneurolepidium angustum (Trinius) Nevski; Leymus angustus subsp. macroantherus D. F. Cui; Triticum angustum (Trinius) F. Hermann.

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Habitat

Habitat & Distribution

Grassy places, meadows; 2000–2100 m. Gansu, Nei Mongol, Ningxia, Qinghai, Xinjiang [Kazakhstan, Kyrgyzstan, Mongolia, Russia, Turkmenistan, Uzbekistan; SW Asia, Europe].

Flora of China @ eFloras.org

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Molecular Biology

Statistics of barcoding coverage: Leymus angustus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Species: 3
Species With Barcodes: 1

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Source: Barcode of Life Data Systems (BOLD)

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Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNA - Not Applicable

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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