GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Triticum turanicum

HABIT Annual; caespitose. Culms 66–110 cm long. Culm-internodes with small lumen, or solid. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades 10–15 mm wide. Leaf-blade surface pubescent.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; oblong; bilateral; 9–15 cm long; 10–11 mm wide. Rhachis tough; flattened; 1.3–3 mm wide; ciliate on margins. Spikelet packing broadside to rhachis; lax. Rhachis internodes cuneate; 5–6.5 mm long.

Spikelets ascending; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 12–15 mm long; persistent on plant. Floret callus pubescent.

GLUMES Glumes similar; reaching apex of florets. Lower glume ovate; 12–15 mm long; 1 length of upper glume; coriaceous; pallid; 2-keeled; keeled all along; 5–9 -veined. Lower glume lateral veins prominent. Lower glume surface pubescent. Lower glume apex with a unilateral tooth; truncate. Upper glume ovate; 12–15 mm long; 1 length of adjacent fertile lemma; coriaceous; pallid; 2-keeled; keeled all along; 5–9 -veined. Upper glume lateral veins prominent; divergent at apex. Upper glume surface pubescent. Upper glume apex with a unilateral tooth; truncate.

FLORETS Fertile lemma elliptic; 12–15 mm long; coriaceous; without keel; 5–9 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn 140–160 mm long overall; limb scabrous. Palea embraced by lemma; coriaceous; 2 -veined. Palea keels winged; conspicuously winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3. Ovary with a fleshy appendage below style insertion; pubescent on apex.

FRUIT Caryopsis with adherent pericarp; ellipsoid; 10.5–12 mm long; hairy at apex. Hilum linear.

DISTRIBUTION Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia.

NOTES Triticeae. Zlaki 1997.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.