taxonID	type	description	language	source
DCFA0342EC7E5C3A96E3EBE72D34A0F9.taxon	type_taxon	Type. Elymus australasicus (Steud.) Tzvelev (= Anthosachne australasica Steud.).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
DCFA0342EC7E5C3A96E3EBE72D34A0F9.taxon	description	Description. Spikes usually drooping, with relatively few (often only 3 – 7) spikelets (solitary in two regular longitudinal rows). Glumes 4 – 12 mm. Awn of lemma more or less bent to the side 17 – 50 mm.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
D8EB0A0B474E5069A578A7F549EB052F.taxon	description	Description. Spikes straight or slightly drooping, with a fairly large number of spikelets (solitary in two regular longitudinal rows). Glumes (4) 5 – 15 (18) mm. Lemma either awned or awnless. Leaf blades usually flat, green.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
E6771FDAA5435760AF540B79B6D7ADED.taxon	description	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).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
E6771FDAA5435760AF540B79B6D7ADED.taxon	distribution	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).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
E6771FDAA5435760AF540B79B6D7ADED.taxon	distribution	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]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F7952899FDA352D59697514E2A261564.taxon	description	Description. Stems 50 – 100 cm, strong, straight, or slightly bent at base. Leaves 3 – 10 (12) mm wide, usually flat, green, adaxially glabrous or with scattered rather long hairs along slightly prominent ribs. Sheaths either glabrous or hairy. Ligule 1 mm. Spikes, usually green, straight or slightly drooping, often slightly one-sided, 7 – 16 cm. Spikelets appressed against axis of spike, 7 – 20 mm. Glumes broadly lanceolate, acute to acuminate. Lemma abaxially densely and evenly covered with fine spines transitioning into hairs; awn 20 – 40 mm. Palea lanceolate, obtuse, bristly along keels. Anthers 2 – 4 mm (Fig. 4). 2 n = 28 (Tzvelev and Probatova 2019).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F7952899FDA352D59697514E2A261564.taxon	distribution	General distribution. Russia (Western Siberia, Altai), Afghanistan, Pakistan, China (Kashgar), Western Himalayas, Mongolia, Middle Asia (Tarbagatai, Dzungarian Alatau, Tian Shan, Pamir-Alay: Hissar, Darvaz, and Pamir Mountain ranges): Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F7952899FDA352D59697514E2A261564.taxon	distribution	Distribution in Uzbekistan. Surkhandarya and Tashkent regions (Fig. 3 C). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. KARZHANTAU RANGE (Syr-Darya region, Tashkent Gorge. The surroundings of Khumsan mountains Kerzhentau in the stones, high, 24. 07. 1922, Simonova 285 [TASH 040946!]); UGAM RANGE (Valley of the Pskem River. Upper reaches of Tepar-say, 17. 08. 1928, Kultiasov 717 [TASH 055306!]); PSKEM RANGE (Valley of the Pskem River, 28. 08. 1928, Kultiasov 904 [TASH 055305!]; River basin Pskem. River valley Oygaing, Description No. 41, 1941, Momotov s. n. [TASH 040968!]; the upper reaches of the river Oygaing. Pass (4200 m) in the upper reaches of the Kzyl – Tor, 19. 08. 1956, Zukerwanik 1515 [TASH 040965!, TASH 040970!]; Bostandyk district, upper reaches of the Barkrak-say gorge. On the southern rocky slope near the GRP base, 3300 m, 08. 08. 1959, Pavlov 19 a [MW 0808635]); MAYDANTAL RANGE (lower reaches of the Ayutor River, h = 2120, 13. 08. 2021, Maltsev s. n. [TASH 131348!]); I- 1 - b Western Chatkal region. CHATKAL RANGE (Mountains Tashkent Alatau. Kizyl-Nura Mountain. The upper reaches of the Parkent-say. Rubble slope, 09. 08. 1953, Mailun, Nabiev 1139 [TASH 040941!]); I- 1 - d Кurama region. KURAMA RANGE (Northern slopes. Upper reaches of the Lyashkarak-say. Subalpine belt. Tugai-sedge vegetation, 06. 08. 1939, Kudryashev 1055 [TASH 040942!]. I- 7 Hissar-Darvaz district. I- 7 - a Sangardak-Tupalang region. HISSAR RANGE (Pamiro-Alay. Choriogul Mountains. Side slope, 7. 08. 1941, Lopotiy, Pinhasov 77 [TASH 040951!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
6DAA97F107F459FC9BBE0B1B0C49D688.taxon	description	Description. Stems 60 – 120 cm, shortly hairy. Leaves 7 – 12 mm wide, flat, and short-hairy on both surfaces. Sheaths hairy. Ligule short. Spikes with closely spaced spikelets, often one-sided. Spikelets usually with 5 – 8 florets. Internodes of spike rough along two lateral ridges. Glumes lanceolate-oblong, intervals between veins wider than veins; apex abruptly acute. Awn of lemma straight, to 6 mm. Palea linear. Anthers 2 – 3 mm (Fig. 5).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
6DAA97F107F459FC9BBE0B1B0C49D688.taxon	distribution	General distribution. Middle Asia (Pamir-Alay: Hissar, Darvaz, Turkestan Ranges): Tajikistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
6DAA97F107F459FC9BBE0B1B0C49D688.taxon	distribution	Distribution in Uzbekistan. Kashkadarya region (Fig. 3 B). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Western Pamir-Alay. Kyzyl-Darya River Basin. Karam-Kul tract. Eastern slope (40 °) in the upper reaches of the Karam-Kul River, 01. 09. 1941, Koshernikova 652 [TASH 046021!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
2FB5F19A7CA753758674A35383ADCFE4.taxon	description	Description. Stems 30 – 70 cm, glabrous and smooth. Leaves folded lengthwise, glabrous, adaxially rough, abaxially smooth or occasionally hairy. Sheaths glabrous, smooth. Ligule short. Spikes drooping, with 3 – 7 spikelets. Spikelets solitary along axis of spike. Internodes of spikelet noticeably elongate. Glumes linear-lanceolate, apex acute or with awn to 5 (7) mm. Awn of lemma bent to side, 35 – 60 (70) mm. Palea linear, usually slightly shorter than lemma, ciliate along ridges. Anthers 4 – 6 (7) mm (Fig. 6).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
2FB5F19A7CA753758674A35383ADCFE4.taxon	distribution	General distribution. Iran, Iraq, Afghanistan, Pakistan, Western Himalayas, Tibet, Nepal, Middle Asia (Hisor, Peter I, Darvoz, Kuhitang mountain ranges): Tajikistan, Turkmenistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
2FB5F19A7CA753758674A35383ADCFE4.taxon	distribution	Distribution in Uzbekistan. Kashkadarya and Surkhandarya regions (Fig. 3 D). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Hazret-Sultan Mountain. Rocky slope of the Ak-su River valley. Altitude 2700 m, 17. 07. 1933, Gordienko, Chilikina 214 [MW 0808634]; Western Pamir-Alay. Upper reaches of the Yakkabag-Darya River. Around the village of Tash-Kurgan. Mountain Maskara. Limestone scree, 14. 07. 1936, Butkov Bochantsev 937 [TASH 040995!]); I- 6 - c Baysun region. HISSAR RANGE (Ketmen-Chapty Mountain, rocky slope, near the Gasa pass, 2800 m, 20. 07. 1935, Gordienko 22 [MW 0808631]); I- 6 - d Kuhitang region. KUHITANG RANGE (Montes meridionales: Sogdiano-transoxani: In detritu calcareo submobili in montibus Kuhitang supra p. Kizyl-alma, 28. 06. 1927, Vvedensky, Popov [TASH 046135!]; Pamir-Alay Mountains, Kempir-Tyube, 15. 07. 1935, Pryanishnikov 42 [MW 0808633]; Kugitang-Tau. Machaily (Machaily-say) juniper forest, 2200 m, 11. 05. 1985, Khasanov s. n. [TASH 126638!, TASH 126639!].	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
40B356A5AF55542080B06F82C78E428B.taxon	description	Description. Stems numerous, 80 – 120 cm, densely short hairy below nodes. Leaves 3 – 9 mm wide, adaxial surface densely hairy. Sheaths rough. Ligule truncate, to 1 mm. Spikes erect, rarely slightly drooping. Spikelets solitary along axis of spikes. Internodes of spike axis rough along two lateral ridges. Glumes 10 – 20 mm, almost equal, narrowly lanceolate, apex narrowly acute, with awn to 3 mm. Lemma abaxially with spines or hairs across entire surface, with awn 15 – 30 mm, awn straight or often slightly curved. Palea lanceolate, elongate, margins short ciliate. Anthers 3 – 4.5 mm (Fig. 7).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
40B356A5AF55542080B06F82C78E428B.taxon	distribution	General distribution. Middle Asia (Tian Shan (indicated for the Talas Alatau), Pamir-Alay: Hissar, Darvaz, and Western Pamir ranges): Kyrgyzstan, Tajikistan, and Uzbekistan (Alieva et al. 2024 b).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
40B356A5AF55542080B06F82C78E428B.taxon	distribution	Distribution in Uzbekistan. Kashkadarya and Surkhandarya regions (Fig. 3 E). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (South-western Hissar, Hissar State Nature Reserve, Tankhozdarya branch, Osmantalash ridge, 02. 07. 2021, Aromov. Southwestern Hissar, Hissar State Reserve, Gilon department, Novshur say, 14. 07. 2022, Aromov; Kyzylsuv department, big Khursanddara say, 30. 07. 2022, Aromov s. n. [Herbarium of the Hissar State Nature Reserve.]); Southwestern Hissar, Hissar State Reserve, Tankhozdarya department, Kuralai say, 30. 07. 2022, Aromov s. n. [Herbarium of the Hissar State Nature Reserve.]). I- 6 - c Baysun region. (Mountains of Khodja-gurgur ata. Basin of the Khodja-ipak say River, Kyzyl-su, 29. 07. 1934, Penkaovich 148 [TASH 046154!]. I- 7 Hissar-Darvaz district. I- 7 - a Sangardak-Tupalang region. HISSAR RANGE (Sary-Asiya district. Descent from Dzhaukoz pass, 04. 08. 1931, Merkulevich s. n. [TASH 046155!, TASH 046156!]; Pamir-Alay. 3 km east of the village Khovat, altitude 2200 m, at the upper boundary of the deciduous forest. Description 51., 02. 08. 1941, Gromakov 634 [TASH 046157!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F9AA953C45BE574491AE106524623776.taxon	description	Description. Stems 50 – 120 cm, glabrous, smooth. Leaves 7 – 11 mm wide, flat, abaxially smooth and glabrous, adaxially rough with scattered hairs. Lowest part of sheath hairy. Ligule short. Spikes straight, 7 – 13 cm. Spikelets 20 – 30 mm, green or purple. Internodes of spike rough only along two lateral ribs. Glumes broadly lanceolate, margins membranous, quickly acuminate to bristle-like apex to 2 mm. Lemma abaxially nearly or entirely densely spiny or hairy, with awn to 7 mm. Palea linear, nearly equal to lemma. Anthers 1.8 – 3 mm (Fig. 8). 2 n = 28 (Tzvelev and Probatova 2019).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F9AA953C45BE574491AE106524623776.taxon	distribution	General distribution. China, Pakistan, Russia, western Himalayas, Middle Asia (Tarbagatai, Junggar Alatau, Tian Shan, Aral-Caspian Lowlands, Pre-Balkhash Deserts, Pamir-Alay: Gissar, Darvaz, and Pamir ranges): Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
F9AA953C45BE574491AE106524623776.taxon	distribution	Distribution in Uzbekistan. Jizzakh, Kashkadarya, Namangan, Surkhandarya, and Tashkent regions (Fig. 3 F). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. UGAM RANGE (Syr-Darya Region, Tashkent District. Valley of the Ugam River. 06.1921, Maksimov s. n. [MW 0808955]; Valley of the Pskem River. Babajan Sai (left tributary of the Pskem River). On turf-covered slopes, 26. 07. 1941, Momotov 84 [TASH 055307!]; Syr Darya Region, Tashkent District. Valley of the Ugam River, Maksimov s. n. [TASH 055308!]; Bostandyk, on rocky slopes along the ridge of the Ugam Range in the upper reaches of the Navali-Sai gorge, at 2800 – 3000 m, 31. 07. 1953, Pavlov 467 [MW 0808951, MW 0808959]; Oygaing, 03. 08. 2023, Turdiev, Aliyeva O _ 16 _ A [TASH 054576!]); PSKEM RANGE (Bostandyk, on rocky scree beneath a large snow patch at the head of Aksar-Sai, 24. 07. 1949, Pavlov 158 [MW 0808948], 28. 07. 1949, Pavlov 244 [MW 0808949, MW 0808950]; Upper reaches of the Oygaining River. Gentle slopes of the right bank of Tunduk-Sai, 20. 08. 1956, Tsukervanik 1572 [TASH 055292!], Granitov 1567 [TASH 055296!]). I- 1 - b Western Chatkal region. CHATKAL RANGE (Chatkal Mountain-Forest Reserve. Maidan-Tal section, Tashkent-Say, southern slope at an altitude of 1500 – 1700 m, 10.10., Savich s. n. [TASH 046203!, TASH 046204!]; Vicinity of the Chimgan Botanical Station. Gorge of the Chimganka River, on the stream bank near the waterfall, 26. 08. 1928, Gomolitsky 477 [TASH 055301!]; Myn-Dzhilke tract. Upper reaches of the Nurek-Ata River. Southern gravelly slopes (does not fit the description, as there is no awn on lemma), 17. 07. 1936, Korotkova, Titov 1430 [TASH 047501!], 1446 [TASH 047502!]; Basin of the Angren River. Rocky slope below the Davan-Sai Pass, 15. 08. 1937, Zakirov s. n. [SAMDU]; Basin of the Chatkal River. Mazar River Valley. Eastern slope of the left bank of the Mazar River, belt of creeping form juniper, 08. 08. 1938, Pyataeva, Momotov 604 [TASH 055304!]; Tashkent Alatau Mountains. Basin of the Bash-Kyzyl-Say River. Menora-Say, 02. 08. 1953, Butkov, Tsukervanik 1203 [TASH 046343!]; New section of Reserve, Chatkal Mountains, 70 km E of Tashkent, 314209 [USDA _ NPGS 3417113], 314200 [USDA _ NPGS 3417106], 314211 [USDA _ NPGS 3417103]); I- 1 - c Arashan region. CHATKAL RANGE (Angren Expedition. Right bank of the Angren River; warm springs of Arasan, granite, 14. 08. 1924, Korovin 2736 [TASH 055326], 16. 08. 1924, Korovin 2737 [TASH 055327]; Basin of the Angren River. Upper reaches of the Angren River, above the warm springs of Arashan, along the shore of the lake, at an altitude of 1750 m. 28. 07. 1938, Pyataeva, Momotov 347 [TASH 055329!, TASH 055330!]; Angren Plateau. Southern slopes. Near Arasan Lake. Northeastern slope. Alpine vegetation belt, 19. 08. 1939, Kudryashev 1237 [TASH 055331!]; Arashan Lake, on the slopes, 24. 07. 1940, Korotkova 231 [TASH 047493!]); I- 1 - d Kurama region. CHATKAL RANGE (Basin of the Angren River. Upper reaches of the Angren River, above the warm springs of Arashan, sand deposits on the southeast slope of the Babai-Tagh ridge, site near the water, 28. 07. 1938, Pyataeva, Momotov 316 [TASH 046200!]; Tashkent Alatau. Southern gravelly slope of Mountain Kyzyl-nura, altitude 3200 m, 11. 09. 1939, Gomolitsky 77 [TASH 055309!]; Basin of the Angren River. In the upper reaches of the Chet-su, on gravelly slopes, 27. 07. 1940, Korotkova 315 [TASH 055335!]; Valley of the Angren River. Sai Ayri. Tugai, 17. 08. 1940, Usmanov 1187 [TASH 055386!]); KURAMA RANGE (Kishvash Sai, upper reaches of Lashkerek, above the juniper zone. Rocky slope, 12. 07. 1939, Zakirov s. n. [SAMDU]; Basin of the Angren River. Dawan-sai, rocky slope below the pass, 15. 08. 1937, Zakirov s. n. [TASH 055328!]; Northern slopes of the upper reaches of Nizbash-sai. Eastern slope with subalpine vegetation, 06. 08. 1939, Kudryashev 1083 [TASH 055336!, TASH 055337!]; Northern slope of Say Saracha, western slope of the Juniper forest, 13. 07. 1940, Usmanov 1307 [TASH 055390!]; Northern slope of Say Kum-Kul. Tugay vegetation, 10. 08. 1940, Usmanov 1210 [TASH 055387!]; Northern slopes of the Kurama Range, Abyazsay, 4 th brigade of the breeding sovkhoz, h = 1950 m, 11. 09. 1956, Kamalov 136 [TASH 055389!], h = 1900 m, juniper zone (prostrate form), of the breeding farm, 11. 09. 1956, Kamalov, Vernik, Nabiev, Tsukervanik 137 [TASH 055388!], Stud farm, rocky gravelly slope, 2150 m, 17. 09. 1956, Kamalov 316 [TASH 055385!]). I- 5 Kuhistan district. I- 5 - a North Turkestan region. TURKESTAN RANGE (Zaamin Forestry, Gorge of the Kul-su River, 23. 07. 1926, Popov, Androsov 116 [TASH 055323!], 117 [TASH 055324!]; Gurlash River Gorge, on the left bank of the Gurlash River, opposite Chutka-Say, 25. 07. 1926, Popov, Androsov 144 [TASH 055325!]; Zaamin District. Headwaters of the Chandyir Rivers, near the pass. Absolute altitude 2700 – 3000 m, 14. 09. 1932, Titov, Eliseeva 600 [TASH 055322!]; Pamiro-Alay. Basin of Guralash River. Cone of the Mechetyly-Say River, 27. 07. 1934, Zakrzhevskiy 491 [TASH 055316!, TASH 055319!]; Northern slopes of the Turkestan Range, headwaters of the Sanzar River. Guralash-Say Nature Reserve. At the head of Guralash, on the northern slopes of Langar-Say, 14. 08. 1937, Korotkova, Vasil’kovskaya 1039 [TASH 055341!], 17. 08. 1937, Korotkova, Vasil’kovskaya 1073 [TASH 055320!]; along the ridge of Angerly-Say, opposite Shibarly-Say. Dry subalpine meadow, 30. 08. 1947, Nazarenko s. n. [TASH 055237!, TASH 055238!]; 31. 08. 1947, Nazarenko 634 [TASH 055235!]); I- 5 - b Malguzar region. MALGUZAR RANGE (Northern slopes of the Turkestan Range. 4 – 5 km from the village of Besh-Kubu towards the Zaamin mountains, 22. 05. 1937, Korotkova, Vasil’kovskaya 989 [TASH 055338!]). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Mountain Hazret-Sultan. Aksu River. Elevation 2800 m, 17. 07. 1933, Gordienko, Chilinyn 277 [MW 0808944]). I- 7 Hissar-Darvaz district. I- 7 - a Sangardak-Tupalang region. HISSAR RANGE (Pamiro-Alay. Upper reaches of the Yagly-Khocha [Yangiklik] River, elevation 3200 m. Description N 82, 14. 08. 1941, Gromakov 722 [TASH 055318!]; Basin of the Tupolang River. Upper reaches of the Khovar River. Eastern slope in the alpine zone, 09. 09. 1947, Pyatayeva 603 [TASH 040959!]; Above Dara-Say at the pass. Subalpine and alpine zones, 17. 07. 1948, Pyatayeva 1084! [TASH 055317!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
5C1787B9F73259C29E15CF430A71C48F.taxon	description	Description. Stems 30 – 150 cm. Leaves 1.2 – 4 mm wide, often longitudinally folded, grayish green, adaxially with fairly prominent ribs, densely short hairy. Sheaths glabrous or hairy. Ligule to 1.2 mm. Spikes erect. Spikelets solitary along axis of spike. Lower internodes of rather loose spikes smooth or with scattered short spines along ribs. Glumes broadly lanceolate, margins membranous, apex rapidly acuminate. Lemma with scattered spines, often with bluish bloom; awn more or less bent to side, 20 – 30 mm. Palea linear, nearly equal to lemma. Anthers 3 – 4.5 mm (Fig. 9).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
5C1787B9F73259C29E15CF430A71C48F.taxon	distribution	General distribution. Middle Asia (Western Tian Shan, Pamir-Alay: Alay, Hissar, Darvaz mountain ranges): Kyrgyzstan, Tajikistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
5C1787B9F73259C29E15CF430A71C48F.taxon	distribution	Distribution in Uzbekistan. Jizzakh, Kashkadarya, Namangan, Surkhandarya, Tashkent, and Fergana regions (Fig. 3 G). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. PSKEM RANGE (Upper reaches of the Oygaing River. Slopes of the right bank of Tundyk-say, 21. 08. 1956, Granitov 1615 [TASH 040969!]; Oygaing River valley, upper reaches of the Tunduksay gorge. Altitude 2269 m, 10. 08. 2019, Tojibayev, Juramurodov 1008103 [TASH 060161!]; Upper reaches of the Barkraksay gorge. Altitude 2540 m, 11. 08. 2019, Tojibayev, Juramurodov 1108167 [TASH 060160!], [TASH 060159!]); I- 1 - b Western Chatkal region. CHATKAL RANGE (Mik-dzhilke tract. Upper reaches of the Nurek-ata River. Gravelly slopes, 21. 07. 1936, Korotkova, Titov 1602 [TASH 040943!]); I- 1 - c Arashan region. CHATKAL RANGE (Angren Expedition. Syr-Darya region, Tashkent district. Pass Arasan, altitude 2500 m, and the slopes leading to it, 17. 08. 1924, Sovetkina 192 [TASH 040949!, TASH 040952!]); I- 1 - d Kurama region. CHATKAL RANGE (Southern slopes. Pass from Angren to Parkent. Substrate: rocky-gravelly, with pebbles, 22. 07. 1939, Kudryashev 878 [TASH 040937!, TASH 040954!]; Basin of the Angren River. Pass between Bashkutan-say and Aksu-say. On a fine-soil and gravelly slope, 01. 08. 1954, Butkov, Mailun 577 [TASH 040945!, TASH 040955!]). I- 3 Fergana-Alay district. 1 - 3 - b Eastern-Alay region. ALAY RANGE (Skobelievsky District. Northern slope of the Alay Range. Basin of the Shakhimardan River. Upper reaches of the Shivali River. Rocky slope with juniper tree, 25. 07. 1915, Drobow 271 [TASH 045196!]). I- 5 Kuhistan district. I- 5 - a North Turkestan region. TURKESTAN RANGE (Zaamin Forestry. Gorge of the Kul-su River, 26. 07. 1923, Popov, Androsov 99 [TASH 045189!]; 118 [TASH 045190!]; Zaamin Forestry. Gorge of the Gurulash River, 26. 07. 1923, Popov, Androsov s. n. [TASH 045187!]; 26. 07. 1926, Popov, Androsov s. n. [TASH 045188!]; Gallya-Aral District. Mountain Chumkar-Tau. Ridge between the passes Urmitan and Guralash. (Absolute height 3000 – 3100 m), 16. 08. 1932, Titov Eliseeva 295 [TASH 045194!, TASH 045195!]; Northern slopes of the Turkestan Range, upper reaches of the Sanzar River. Guralash-Sai Nature Reserve. On the southeast slope, burned areas, 09. 08. 1937, Korotkova, Vasilykovskaya 954 / а [TASH 045191!]; At the head of Guralash. Watershed between the Langar and Kichik-Shibarly ranges, 13. 08. 1937, Korotkova, Vasilykovskaya 1003 [TASH 040939!]; Along the red scree on the left side of Angirly-Sai, 28. 08. 1937, Korotkova, Vasilykovskaya 1187 [TASH 045192!, TASH 045193!]). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Northern slopes of the Hissar Range. Basin of the Kashkadarya River. Gorge of the Tamshush River (tributary of Ak-su). Near the Tamshush Pass. Alpine belt. Rocks, 03. 08. 1937, Kudryashev 1373 [TASH 040944!, TASH 040953!]). I- 7 Hissar-Darvaz district. I- 7 - a Sangardak-Tupalang region. HISSAR RANGE (Basin of the Tupalang River. Upper reaches of the Khovat River. Right bank of the Khovat River in the alpine zone, 10. 09. 1947, Pyataeva 631 [TASH 040960!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
323D371C69BF5AADB0075B23A9582C7B.taxon	description	Description. Stems 50 – 100 cm, glabrous, smooth. Leaves flat, linear, abaxially rough, glabrous or sparsely hairy. Sheath glabrous, smooth. Ligule to 1 mm. Spikes erect, rarely slightly drooping. Spikelets solitary along axis of spikes. Glumes broadly lanceolate, abruptly acute, rough. Lemma adaxially hairy on most of surface; awn straight or often slightly twisted, to 15 mm. Palea nearly equal to lemma, slightly notched, with ciliate keels. Anthers to 3 mm (Fig. 10).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
323D371C69BF5AADB0075B23A9582C7B.taxon	distribution	General distribution. Russia, China (Kashgar), Mongolia, Middle Asia (Tarbagatai, Dzungarian Alatau, Tian Shan, Pamir-Alay: Hissar, Darvaz, and Pamir Ranges); Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
323D371C69BF5AADB0075B23A9582C7B.taxon	distribution	Distribution in Uzbekistan. Jizzakh, Namangan, and Tashkent regions (Fig. 3 J). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. UGAM RANGE (Bostandyk. On the rocks along the ridge of the Ugam Mountain range in the upper reaches of the Navali-say gorge, 2800 m, 31. 07. 1953, Pavlov 466 [MW 0808858]); PSKEM RANGE (Pskem River basin. Middle course of the Ikhnach-say rivers, 31. 07. 1941, Momotov 171 [TASH 047495!]; Tashkent region, Bostandyk district. Upper reaches of the Pskem, Tyuytash-say, 1955, Karpeshko s. n. [TASH 044516!]; Middle part of the Pskem River valley. Western slope on the right bank of the Ispay-say, 21. 07. 1956, Tsukervanik 1249 [TASH 043752!]; Barkraksay, h = 2300 m, 14. 08. 2002, Maltsev s. n. [TASH 060361!]); MAYDANTAL RANGE (Bostandyk district. Valley of the Oygaing River (right bank), 6 – 7 km above the Beshstor gorge. On a stony slope, 1700 m, 18. 07. 1958, Pavlov 44 [MW 0808857]; 18. 08. 1958, Pavlov 44 [MW 0808856]). I- 1 - b Western Chatkal region. CHATKAL RANGE (Tian-schan occidentalis. Chatkal Mountain Forest Reserve. Maydantal section. Tashkentsay, h = 1500 – 1700 m. Southern slope, 10.10., Savich s. n. [TASH 043754!]; Tashkent Alatau Mountains. Basin of the Nurekata River, Almalyk-say, 30. 07. 1953, Maylun, Nabiev, Tsukervanik 1000 [TASH 043726!]; I- 1 - d Kurama region. KURAMA RANGE (Upper reaches of the Angren River. Angren Plateau. Southern slopes. Upper part of Karasay. Dry slopes, 21. 08. 1939, Kudryashev 1331 [TASH 047503!]); CHATKAL RANGE (Tashkent Alatau. Parkent district. Mountain Takali. Rocky-gravel slope, 12. 08. 1953, Butkov, Tsukervanik 1224 [TASH 047494!]); I- 1 - e Chorkesar region. KURAMA RANGE (Foothills of the Fergana Range. Around the village of Gava, 09. 07. 1928, Kryltsova 509 [TASH 043779!]). I- 5 Kuhistan district. I- 5 - a North Turkestan region. TURKESTAN RANGE (Pamir-Alay. Basin of the Zaamin-su River. Valley of the Tuyatashsay River, 18. 07. 1935, Zakrzhevsky 963 [TASH 047499!], 970 [TASH 055321!]; Reserve “ Guralash, ” Kul-Say, 2400 m, 15. 07. 1940, Kultiassov s. n. [MW 0808851]; Guralash Reserve. Tuyatash-say, 14. 06. 1947, Nazarenko 253 [TASH 047500!]; Kul-Say. Juniper forest. Northern slope, 2300 m, 07. 09. 1954, Obongetskaya 212 [TASH 047497!]; Kul-Say. Southern slope, 2300 m, 09. 09. 1954, Obongetskaya 214 [TASH 047498!]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
048DBF6C23105B379B6B4A8B603D7713.taxon	description	Description. Stems 80 – 95 cm, glabrous, smooth. Leaves 1.4 – 4 mm wide, grayish green, flat, margin rolled, adaxially rigid, abaxially slightly rough or glabrous. Sheath glabrous, smooth. Ligule to 1 mm. Spikes upright, rarely slightly drooping. Spikelets solitary along axis of spikes. Internodes of spike short hairy. Glumes almost equal, narrowly lanceolate, acuminate, with awn to 3 mm. Lemma lanceolate or narrowly lanceolate, slightly rough or glabrous, apex acute, with awn to 2 mm. Palea narrowly lanceolate, margins short ciliate. Anthers 3.5 – 4.5 mm (Fig. 11). 2 n = 56 (Tzvelev 1976).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
048DBF6C23105B379B6B4A8B603D7713.taxon	distribution	General distribution. Eastern and southern Transcaucasia, Iran, Turkey, Middle Asia (Tian Shan, Pamir-Alay: Hissar, Darvaz Ranges): Kazakhstan, Tajikistan, Turkmenistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
048DBF6C23105B379B6B4A8B603D7713.taxon	distribution	Distribution in Uzbekistan. Jizzakh, Kashkadarya, Surkhandarya, and Tashkent regions (Fig. 3 H). I- 1 Western Tian Shan district. I- 1 - b Western Chatkal region. CHATKAL RANGE (Surroundings of the Chimgan Botanical Station. Big Chimgan, 07.1929, Gomolitsky s. n. [TASH 047581!]; Kashka-Su River Gorge, 26. 07. 1936, Korotkova, Titov 1702 [TASH 047578!]; Ridge between the upper Bashkizylsay and Chouli. Northern slopes, 29. 07. 1936, Korotkova, Titov 1847 [TASH 047579!]; Basin of the Chatkal River. Valley of the Akbulak River. South-Western slope of the first watershed ridge of the upper Akbulak River. Shrub and tall grass vegetation, 03. 09. 1938, Pyatayeva, Momotov 1564 [TASH 047570!]; Reserve, Chatkal Mountains, 70 km E of Tashkent 314199 [USDA _ NPGS 3436603], 314202 [USDA _ NPGS 3436605]; New section of Reserve, Chatkal Mountains, 70 km E of Tashkent 314206 [USDA _ NPGS 3436628], 314208 [USDA _ NPGS 3436624]); I- 1 - d Kurama region. KURAMA RANGE (Northern slopes. Near the Shaugaz Pass. Northern slope. Soil: fine-grained, brown, mountain-forest, 10. 07. 1939, Kudryashev 553 [TASH 046184!, TASH 046185!]). I- 5 Kuhistan district. I- 5 - a North Turkestan region. TURKESTAN RANGE (5 – 6 km south of the village of Tenga-Tapty, 19. 08. 1937, Demurina 1167 [TASH 047582!]; Northern slopes of the Turkestan Range, headwaters of the Sanzar River. Guralash-Say Nature Reserve. On the northeastern slope of Angyrly-Say, 26. 08. 1937, Korotkova, Vasil’kovskaya 1143 [TASH 047576!]). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Western Pamiro-Alay. Upper reaches of the Yakabagh-Darya River. Surroundings of the village of Tash-Kurgan. Kapyr-Say locality, 04. 07. 1936, Bochantsev, Butkov 625 [TASH 047574!, TASH 047575!]; Northern slopes of the Gissar Range. Basin of the Kashka-Darya River. Upper part of the Tanhas River basin. Headwaters of the Tanhas River, 01. 08. 1937, Kudryashev 1306 [TASH 047572!, TASH 047573!, TASH 047577!]; 02. 08. 1937, Kudryashev 1339 [TASH 055428!, TASH 055429!, TASH 055430!]); I- 6 - c Baysun region. HISSAR RANGE (Chulbair Mountains. Valley of the Obi-Dara River above the village of Sina, 31. 05. 1929, Vvedensky 184 [TASH 0000179!, TASH 0000180!]). I- 7 Hissar-Darvaz district. I- 7 - a Sangardak-Tupalang region. HISSAR RANGE (Pamiro-Alay. Gissar Range, Delli-Say, above the mouth of the Khucha River, elevation 2300 m. Description No. 87, 16. 08. 1941, Gromakov 729 [TASH 047583!]; Basin of the Tupolang River. Valley of the Khovat River. Stream on the right bank of the Khovat River, at the confluence of the Artushgar stream, 06. 09. 1947, Pyatayeva 483 [TASH 047583!]; Headwaters of the Shatrut River, upstream along the Chilik-Su River to the glaciers, and the surroundings of Chirmak-Zor, 28. 06. 1948, Pyatayeva 817 [TASH 047584!].	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
CD7AB4720A715D109B902C4E85AAB30D.taxon	description	Description. Stems 30 – 70 cm, glabrous, smooth. Leaves 1.2 – 4 mm wide, flat or longitudinally folded, bluish green, glabrous or slightly hairy adaxially. Sheaths glabrous, smooth, lowest sheaths hairy. Ligule nearly inconspicuous. Spikes drooping. Spikelets solitary along axis of spike. Internodes of spikelet more or less short. Glumes awnless, but sometimes with mucro to 0.8 mm. Awn of lemma geniculate, bent outward, to 30 mm. Palea linear, nearly equal to lemma, apex slightly notched or obtuse. Anthers 2 – 2.5 mm (Fig. 12). 2 n = 28 (Tzvelev 1976).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
CD7AB4720A715D109B902C4E85AAB30D.taxon	distribution	General distribution. China (Kashgar), western Himalaya, Middle Asia (Tarbagatai, Dzungarian Alatau, Tian Shan, Pamir-Alay: Alay, Gissar ranges; Darvaz): Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
CD7AB4720A715D109B902C4E85AAB30D.taxon	distribution	Distribution in Uzbekistan. Jizzakh, Kashkadarya, Namangan, Samarkand, Tashkent, and Fergana regions (Fig. 3 I). I- 1 Western Tian Shan district. I- 1 - a Ugam-Pskem region. UGAM RANGE (Tashkent district, Khumsan, Haudale mountains, 14. 08. 1920, Popov 1266 [TASH 0000146!], 1270 [TASH 0000147!]); PSKEM RANGE (Bostandyk district. Upper reaches of the Barkrak-say gorge. Southern rocky slope near the GRP base, 3300 m, 08. 08. 1959, Pavlov 19 [MW 0808515]; Upper reaches of the Barkrak-say gorge. On the rocky southern slope near the cliffs along the right bank of the gorge near the end of the glacier, 3400 m, 11. 08. 1959, Pavlov 116 [MW 0808517]); I- 1 - c Arashan region. CHATKAL RANGE (Angren, surroundings of the Arаshan peak, 29. 07. 1938, Zakirov 26 [SAMDU]); I- 1 - d Kurama region. KURAMA RANGE (Angren River, 1937, Zokirov s. n. [SAMDU]). I- 3 Fergana-Alay district. 1 - 3 - b Eastern-Alay region. ALAY RANGE (Skobelevsky district. Northern slope of the Alay Range. Basin of the Shakhimardan River. Upper reaches of the Archa-bashi River. Granite scree near vegetation, 31. 07. 1915, Drobow 342 [TASH 047390], 6076 [US 2530891]). I- 5 Kuhistan district. I- 5 - a North Turkestan region. TURKESTAN RANGE (Northern slopes of the Turkestan Range, upper reaches of the Sanzar River. Guralash-Say Nature Reserve. On the road, at the Guralash Pass. Altitude 2900 m, 08. 09. 1938, Korotkova 278 [TASH 040990, TASH 040991, TASH 040992]; At the summit of the watershed between Kulsay and Guralash, 14. 07. 1938, Korotkova 256 [TASH 041000, TASH 041001]). I- 6 Western Hissar district. I- 6 - a Kashkadarya region. HISSAR RANGE (Western Pamir-Alay. Upper reaches of the Yakkabag-Darya River. Near the village of Tash-Kurgan, 16. 07. 1936, Butkov, Bochantsev 982 [TASH 040994]; Outcrops of variegated rocks to the west of the village of Tash-Kurgan. Among the cliffs, 30. 06. 1936, Butkov, Bochantsev 513 [TASH 040997, TASH 040998]); I- 6 - b Tarkapchigay region. HISSAR RANGE (Pamir-Alay. Variegated foothills to the southeast of the city of Guzar. Shale screes along the slope of Mountain Kara-San, 09. 09. 1935, Lepeshkin 9 [TASH 040999]).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
EB34E06377E558D8A9F15EEA665D225C.taxon	description	Figs 13, 14	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
EB34E06377E558D8A9F15EEA665D225C.taxon	diagnosis	Diagnosis. Elymus uzbekistanicus differs from the morphologically closely similar E. praeruptus in the type of pubescence of the spikelet axis – the spikelet axis along the ribs and along the back is usually with either long or short hairs, but is not glabrous or bristly along the ribs (Fig. 15). These two species are similar in blade width 1 – 4 (5) mm but the leaves of E. uzbekistanicus are longitudinally rolled or more or less flat, with long, dense hairs protruding adaxial and abaxial surfaces, in contrast to the leaves of E. praeruptus, which are glabrous or covered with very short hairs on the upper surface (Fig. 16).	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
EB34E06377E558D8A9F15EEA665D225C.taxon	description	Description. Herbs, perennial, forming dense turf, without creeping underground shoots, bluish glaucous. Stems erect, 50 – 100 cm, pubescent with dense, long hairs; nodes densely long-hairy. Sheaths hairy. Ligule 1 – 1.5 mm. Leaves 1 – 4 (5) mm wide, grayish green, convolute or more or less flat, both surfaces protruding densely long-hairy. Inflorescence - straight, less often slightly drooping, usually linear, (5) 10 – 17 (20) cm. Spikelets solitary at each node of axis of spike, all uniform (8) 10 – 15 (20) mm, with 3 – 7 bisexual florets, violet; axis of spikelet along ribs and along the back with long hairs, either at the bottom with more or less short hairs. Glumes (4) 5 – 7 (9) veined; upper glume 8 – 10 mm, lower glume 9 – 11 mm. Lemma 8 – 9 mm, adaxially with dense even spines merging into hairs; awn flexuous, to 25 mm. Palea 7 – 8 mm. Callus of lemma with few hairs. Anthers 2 – 3 mm.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
EB34E06377E558D8A9F15EEA665D225C.taxon	distribution	Distribution and habitat. Elymus uzbekistanicus grows on rocky screes at 2900 m. It is known only from the type locality on northern slopes of the Turkestan Range, Guralash river basin, in Jizzakh province, Uzbekistan (Fig. 17). Elymus uzbekistanicus belongs to the Northern Turkestan botanical-geographical region within the Kuhistan botanical-geographical district.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
EB34E06377E558D8A9F15EEA665D225C.taxon	etymology	Etymology. The specific epithet refers to the country, Uzbekistan.	en	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: 9-50, DOI: 10.3897/phytokeys.257.142950
