Genus:
Triticum L.

Triticum aestivum subsp. macha (Dekapr. & Menabde) McKey

This subspecies is accepted, and its native range is W. Transcaucasus.

[GB]
Morphology General Habit
Annual; caespitose. Culms 60-100 cm long. Culm-internodes thin-walled. Leaf-sheath oral hairs ciliate. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades 10-60 cm long; 10-15 mm wide. Leaf-blade surface scabrous; glabrous, or pubescent; sparsely hairy.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; bilateral; 10-12.5 cm long; 8-10 mm wide. Rhachis fragile at the nodes; flattened; ciliate on margins. Spikelet packing broadside to rhachis; crowded. Rhachis internodes oblong; 3-5 mm long; falling with spikelet alongside. Spikelets solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 15-18 mm long; falling entire; deciduous with accessory branch structures.
Fertile
Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 15-18 mm long; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes similar; shorter than spikelet. Lower glume lanceolate, or elliptic; 10-11 mm long; 1 length of upper glume; coriaceous; 2-keeled; keeled all along. Lower glume primary vein scabrous. Lower glume surface pubescent. Lower glume apex with a unilateral tooth; truncate. Upper glume lanceolate, or elliptic; 10-11 mm long; coriaceous; 2-keeled; keeled all along. Upper glume primary vein scabrous. Upper glume lateral veins divergent at apex. Upper glume surface pubescent. Upper glume apex with a unilateral tooth; truncate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 11-13 mm long; chartaceous; keeled; keeled above. Lemma surface pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn 40-65 mm long overall. Palea 2 -veined. Palea keels winged; conspicuously winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3. Ovary with a fleshy appendage below style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy at apex. Hilum linear.
Distribution
Asia-temperate: Caucasus.
Reference
Triticeae. Fl USSR 1996.

Native to:

Transcaucasus

English
Makha Wheat

Triticum aestivum subsp. macha (Dekapr. & Menabde) McKey appears in other Kew resources:

First published in Svensk Bot. Tidskr. 48: 586 (1954)

Not accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Triticum macha.]

Literature

Kew Backbone Distributions

  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.

  • GrassBase - The Online World Grass Flora

    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Living Collection Database

    Common Names from Royal Botanic Gardens, Kew Living Collection https://www.kew.org/

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0