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FOC | Family List | FOC Vol. 22 | Poaceae | Secale

2. Secale segetale (Zhukovsky) Roshevitz, Trudy Bot. Inst. Akad. Nauk SSSR, Ser. 1, Fl. Sist. Vyssh. Rast. 6: 143. 1947.

脆轴黑麦 cui zhou hei mai

Secale cereale Linnaeus subsp. segetale Zhukovsky, Trudy Prikl. Bot. 19(2): 56. 1928; S. afghanicum (Vavilov) Roshevitz; S. cereale subsp. afghanicum (Vavilov) K. Hammer; S. cereale var. afghanicum Vavilov; S. segetale subsp. afghanicum (Vavilov) Bondar ex Korovina; S. segetale var. afghanicum (Vavilov) Tzvelev.

Culms tufted, erect or geniculate at base, glaucous, to 100 cm tall, glabrous, or pilose below spike. Leaf blade flat or involute, 10–40 × 0.3–0.8 cm, scabrous or adaxial surface pubescent. Spike 4–13 × ca. 1 cm excluding awns; rachis fragile, or sometimes tough proximally, margin ciliate. Spikelets lanceolate, 12–15(–17) mm, with 2(or 3) florets. Glumes 9–12 mm, glabrous or sparsely puberulent, shortly scabrous-ciliate along keels, apex acuminate or with awn to 5 mm. Lemma long lanceolate, 8–12 mm, glabrous, smooth, rarely scabrous; awn 20–70 mm. Palea equaling lemma. Fl. and fr. (May–)Jul–Aug. 2n = 14*.

A weed in fields of Triticum. Xinjiang [Kazakhstan, Kyrgyzstan, Pakistan, Turkmenistan, Uzbekistan; SW Asia].


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