Poaceae

A. arundinaceus Poiret in Lam., Encyl. 8:776 (1808). Syn:A. ventricosa Pers., Syn. Pl. 1:80 (1805) non Hudson (1778); A. nigricans Hornem., Hort. Hafn. 1:68 (1813)! A. pratensis L. var. armenus C. Koch in Linnaea 21:381 (1848);A. armenus (C. Koch)Grossh., Fl.Kavk. ed. 2, 1:173(1939);A. arun-dinaceus Poiret subsp. armenus (C. Koch) Tzvelev in Novit. Syst. Pl. Vasc. (Leningrad) 8:18 (1971). Ic: Zangheri, Fl.Ital. 2: t. 183 f. 6670(1976). Map 72.
Perennial, with creeping rhizomes. Stems 23-105 cm, usually erect, some-times geniculately ascending from base, 2-noded. Leaf sheaths glabrous to slightly hairy, inflated; ligule 1.5-5 mm, obtuse-truncate; blades 2.5-4.5 cm x 3-10 mm, linear, acuminate, scabrid on margins and somewhat on upper sur-face. Panicle 1.7-7 cm x 6-14 mm, broadly cylindrical, green to purplish. Spikelets 3.5-7 mm, urceolate. Glumes lanceolate, acute, diverging at apex, connate for 1/4 of their length, ciliate on keels. Lemma 3.5-5.8 mm, ovate, obliquely truncate, with a subdorsal awn; awn 1.5-7.5 mm, somewhat genic-ulate and twisted below but usually rather slender and variously curved. Anthers 3-3.6 mm. Fl. 4-8. Marshy ground, water meadows, cultivated land, roadsides, ditches, s.1.-3050 m.
Type: [France] cette plant est cultivee au Jardin desPlantes de Paris,Poiret (holo. P-Desf.).
Widespread, rare in S. Anatolia. A2(E) Istanbul: Topkapi to Maltepe, 28 v 1913, Azn.! A3 Bolu: Köroglu Da., 1800 m, Akman 6381! A4 Çankiri: Eldi-van Da., 1200 m, A. Baytop (İSTE 35225)! A5 Amasya: 10 km from Merzi-fon to Çorum, A. Baytop (İSTE 9121)! A7 Gümüşane: Aktaş, Sint. 1894: 6161! A8 Rize: Pontus Lazicus, 1830 m, 1866, Bal. A9 Kars: mts. E. of
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Kağizman, N. side of pass between Akçay and Cumaçay, 2350 m, D. 46773! Bl Manisa: Manisa Da., A. Baytop (İSTE 9923)! B3 Eskişehir: Sündiken Da., Kuzuculu G., 1500 m, Ekim 526! B4 Ankara: 64 km S. of Ankara towards Konya, 1100 m, Coode & Jones 93! B5 Yozgat: 20 km N. of Himmetdede, 1200 m, Coode & Jones 1480! B6 Sivas: Sivas, 1200 m, Stn. & Hend. 5364! B7 Elaziğ: 13 km from Elaziğ to Hazar G., 850 m, D. 28984! B8 Erzurum: 29 km from Hinis to Pasinler, 1800 m, D. 46417! Muş: Muş, 1160m, C. Koch (type of A. pratensis var. armenus). B9 Van: d. Gevaş, Artos Da., 3050 m, D. 22855! B10 Ağri: nr Doğubayazit, 1585 m, D.M. Brown 504! C2 Denizli: Honaz Da., Atalan Y., 1550 m, Tuzlaci (İSTE 26605)! C3 Konya: Konya Kara Çayiri, Birand 133! C4 Konya: Konya to Karapinar, 1 km E. of Yarma, 1000 m, Holtz 00.597 et al.! C6 Maraş: Koyunoluk Da. to Delihubek Da., 1000 m, D. 27020! C7 Urfa: d. Siverek, W. foot of Karaca Da., 1000 m, D. 28325! C10 Hakkari: Yüksekova, 1950 m, D. 45854!
Temperate Eurasia. Euro-Sib, element. Variable in hairiness of glumes. Most closely allied to A. pratensis, from which it differs by its long creeping rhizomes, obliquely truncate lemma apex and divergent glumes with long hairs on the keels. The palea is normally absent, but in one specimen from B6 Sivas (Sivas to Tatlica, 1500 m, Tobey 1679!) a palea is present. This specimen requires further investigation.