Poaceae

B. sterilis L., Sp. Pl 7 7 (175 3). Syn: Zerna sterilis (L.) Panzer in Denkschr. Akad. Wiss. München 4:309 (1814)! Anisantha sterilis (L.) Nevski in Acta Univ. Asiae Med. ser. 8b (Bot.) 17:20(1934)! Ic: Fl. Iraq 9: t. 54(1968);F1. RPR 12: t. 64 f. 3(1972).
Annual. Stems 5-50(-90) cm, erect or ascending, glabrous. Leaf sheaths pubescent. Leaf blades 5-20 cm x2-5 mm, flaccid, softly hairy. Panicle 10-15 (-18) x 7-12 cm, very lax, usually simple; branches mostly longer than spike-lets, spreading or drooping, rarely bearing more than 1 spikelet. Spikelets 20-30(-36) x 5-8 mm, cuneiform, rough, hairy or glabrous. Lower glume 6-14 mm, subulate, upper glume 10-18 mm, linear-lanceolate. Lemma 14-19 x 2-4 mm, narrowly lanceolate, with an apical notch 1-2 mm deep; awn 15-25 mm, straight, slender, usually longer than lemma. Palea little shorter than lemma. Stamens 3; anthers 1 mm. Caryopsis 7-9 mm. Fl. 4-7. Ruderal habitats, grassy hills and as a weed of cultivated fields, s.l. -1400 m.
Type (Smith, op. cit. 500, 1985): [Spain] Loefling 82 (Hb. Linn. 93/20!).
Widespread. A1(E) Edirne: Karaağaç to Edirne, A. Baytop (ISTE 6612)! A2(E) Istanbul: Yildiz bahçesi, A. Baytop (ISTE 7635 p.p. - with B. diandrus)\ A2(A) Istanbul: Çatal Da., Alem Da., 5 vi 1892, Azn.! A3 Bilecik: 2 km S. of Bilecik station, 400 m, D. 42096! A4 Ankara: Hacikadin valley nr Keçiören,B3 Eskişehir: Tayciler, 1200 m, Ekim 506! B6 Adana: 7 km N. of Saimbeyli, 1400 m, Sorger 77-27-20! C2 Denizli: Tekke köy, 5 km S. of Denizli, 500 m, Hormia 627! C3 İsparta: Davras Da. above Sav köyü, A. Baytop (İSTE 9644)! C4 Antalya: Alanya promontory, 180 m, D. 25868! C6 Maraş: 24 km from Maraş, to Göksun, 1300 m, Stn. & Hend. 5525! C7 Urfa: Karaca Da., 1650 m, Kit-Tan 1671! C8 Diyarbakir: Diyarbakir, Zel 1064! C9 Siirt: 14 km from Çirnak to Cizre, 610 m, D. 42686! Is: Psara, Ahladokambos, 20 m, Greuter 10822!
Europe, S.W. Asia, N. Africa.