Poaceae

B. danthoniae Trin. in C.A. Meyer, Verz. Pfl. Cauc. 24 (1831). Ic: Fl. URSS 2: t. 42 f. 5 (1934); Fl. Iraq 9: t. 47(1968).
Annual. Stems 5-40 cm, erect or ascending. Leaf sheaths pubescent. Leaf blades 2-10 cm x 2-5 mm, pubescent. Panicle 2-10 x 1-5 cm, ovoid, stiffly erect, usually dense, often simple or racemose; branches and pedicels shorter than spikelets. Spikelets 10-40 x 4-10 mm, lanceolate to oblong, laterally compressed. Lower glume 6-8 mm, lanceolate, upper glume 7-9 mm, elliptic. Lemma 8-12 mm, margins broadly hyaline, bluntly angled c. 1/3 down from lacerate apex; awns usually 3, borne 2-4 mm below lemma apex, central one longest (5-15 mm), basally flattened, divaricate and sometimes twisted when ripe, lateral ones shorter than central awn (rarely subequal), otherwise similar, sometimes absent or very small on lower lemmas, all often deep red or purple. Palea shorter than lemma. Anthers c. 1.5 mm. 2n = 14. Fl. 5-8. Dry limestone screes, slopes and fields, and as a weed of irrigated fields, 500-2170 m.
Type: [Soviet Azerbaijan] e locis lapidosis aridis montium Talüsch prope pagum Swant, 1225 m, [22 vi 1830], C.A. Meyer (holo. LE).
N. & Inner Anatolia. A4 Ankara: nrKizilcahamam, 1200m, McNeill269a! A6 Sivas: Yildiz Da., Çirçir, 1400 m, Tobey2327! A9Kars: 15km from Tuz-luca to Kağizman (Aras valley), 950 m, D. 43604! B4 Konya: Cihanbeyli, D. 18607! B5 Nevşehir: Nevşehir to Ürgüp, 1200-1300m,D. 19133! B6Malatya: 10 km E. of Darende, 900 m, McNeill 431! B7 Elaziğ: 9 km from Elaziğ to Hazar G., 850 m, D. 28971! B8 Diyarbakir: above Hani, 1000 m, Kit-Tan 1913! B9 Bitlis: Tatvan, 1890 m, Tong 32! B10 Ağri: slopes of mt. Ararat, 13 km S. of Iğdir, Jardine 556a! C6 Maraş: Narli to Karabiyikli, 600-700 m, D. 27849! C7 Adiyaman: 45 km from Adiyaman to Kömur, 1090 m, Kit-Tan 2136! C8 Mardin: 12 km from Gercüş to Hasankeyf, 700-800 m, D. 43050! C9 Siirt: 14 km from Şirnak to Cizre, 610 m, D. 42865! C10 Hakkari: Yük-sekova, 1950 m, D.44965!
S. Russia, S.W. Asia (incl. Cyprus) eastwards to Himalayas and Tibet.
Sect. Boissiera (Hochst. ex Steudel) P.M. Smith (Syn: Boissiera Hochst. ex Steudel, pro gen.). Annual. Spikelets lanceolate, terete; lower glume 3-veined, upper 5-7-veined. Lemma erose at tip, rounded on back. Awns 5-9, flattened, divaricate, patent or recurved.