Elymus caninus (L.) L.

Alieva, Kumush B., Peng, Yilong, Usupbaev, Adilet, Tojibaev, Komiljon Sh., Yusupov, Ziyoviddin, Ergashov, Ibrokhimjon, Azimova, Dilnoza & Jiang, Zhilin, 2025, Synopsis of the genus Elymus (Poaceae) in Uzbekistan (Middle Asia) with a description of Elymus uzbekistanicus a new species from Turkestan Mts, PhytoKeys 257, pp. 9-50 : 9-50

1. Elymus caninus (L.) L. in Fl. Suec., ed. 2: 39 (1755)

≡ Agropyron caninum (L.) P. Beauv. in Ess. Agrostogr.: 102 (1812). ≡ Elytrigia canina (L.) Drobow in Fl. Uzbekistan. 1: 539 (1941). ≡ Goulardia canina (L.) Husn. in Graminées: 83 (1899). ≡ Roegneria canina (L.) Nevski in Trudy Bot. Inst. Akad. Nauk S. S. S. R., Ser. 1, Fl. Sist. Vyssh. Rast. 1: 24 (1933). ≡ Triticum caninum L. in Sp. Pl.: 86 (1753) , nom. cons.

= Agropyron abchazicum Woronow in Vĕstn. Tiflissk. Bot. Sada 22: 2 (1912). Type. ABKHAZIA. Hab. in pratis lapidosis subalpinis montis Dzychscha (Abchaziae et Circassiae confines) 6500 ', ubi 4 (17). VIII. 1905 detexi. (It lives in the stony meadows of the subalpine mountain Dzychscha (borders of Abkhazia and Circassia) 6500 ', 4 (17) August 1905. Collector unknown) (holotype LE).

= Roegneria tuskaulensis Vassilcz. in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S. S. S. R. 15: 36 (1953). Type. KYRGYZSTAN. Middle Asia, river basin Khoja-Ata, territory of the Arkit forestry, Sai, south of Sarai-Sai, at the side of the floodplain, 1500 m, 21 August 1950, I. T. Vasilchenko s. n. (holotype LE).

Type.

Europe • Herb. Linnaeus No. 100.9 (LINN), typ. cons. prop. (designated by Andrés Sánchez et al. 2021: 1138).

Description.

Stems 75–150 cm, glabrous, smooth. Leaves 5–10 mm wide, flat, green or bluish green, rough, glabrous or sparsely hairy abaxially. Spikes straight or slightly drooping, with a fairly large number of spikelets. Spikelets solitary along axis of the spike. Internodes of spikelet with short hairs. Glumes lanceolate, abruptly narrowed apically, usually short awned; awn to 2 mm. Lemma abaxially mostly glabrous, smooth, with spicules only apically; awn straight or often slightly curved, 1.5–1.8 cm. Palea with small, densely arranged spicules along keels, apex narrowly rounded. Anthers to 3 mm (Fig. 2 ). 2 n = 28. ( Tzvelev and Probatova 2019).

Phenology.

Flowering and fruiting: June-August.

Habitat.

In forests ( Abies , Picea , Corylus , Juniperus , stunted Juniperus , tugai, and open forests), shrubs (polydominant, mesophytic deciduous), and meadows (floodplains, mesophytic), across all mountain belts, 700–2800 m.

General distribution.

North America, Europe, Scandinavia, the Mediterranean, Turkey, the Caucasus, Western and Eastern Siberia, Iran, China (Kashgar), Middle Asia (Tarbagatai, Dzhungarian Alatau, Tian Shan, Aral-Caspian Lowland).

Distribution in Uzbekistan.

Tashkent Region (Fig. 3 A ). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. UGAM RANGE (Bostanlyk, eastern side along the bank of the stream in the upper reaches of the Navali-sai gorge, 2800 m, 30. 07. 1953, Pavlov 480 [MW 0808430, MW 0808431; MW 0808432]; In the vicinity of Sidzhak village, Sidzhak-sai stream. Alt.: 800–1000 m, 24. 07. 1973, Vašák s. n. [W 1981–0007920]; Asia centralis, Tian-shan, montes Ugamski khrebet, in vicinitate pagi Sidzhak, apud rivulum Sharkrama-sai. Alt.: 700–1000 m, 26. 07. 1973, Vašák s. n. [W 1982–0003370]); MAYDANTAL RANGE (Oygaing river valley, 2 km northeast of the mouth of the right bank of the Beshtor river. h = 1650–1700 m. Birch Grove, 22. 08. 1971, Puchkova, Blativitch 45 [TASH 040340!, TASH 040341!, TASH 040342!]); I- 1 - b Western Chatkal region. CHATKAL RANGE (Gorge of the Kashka-Su River, 26. 07. 1936, Korotkova, Titov 1691 [TASH 040338!]; New section of Reserve, Chatkal Mountains, 70 km E of Tashkent, 314205 [USDA _ NPGS 3389682], 314210 [USDA _ NPGS 3389676]; Parkent nature reserve, 08. 08. 1960, Khokhrjakov s. n [W 1963–0014241]).

Figures

Figure 2. Elymus caninus a spike b spikelet c glumes d lemmas and paleas e stem f node g ligule (https://doi.org/10.13140/RG.2.2.12460.27527).

Figure 3. Distribution maps of Elymus species in Uzbekistan A E. caninus B E. lachnophyllus C E. fedtschenkoi D E. longearistatus E E. macrochaetus F E. nevskii G E. praeruptus H E. transhyrcanus I E. tschimganicus J E. tianschanigenus.