Triticum spp.
Family: Poaceae
Triticum image
ASU Fruit & Seed Collection  
Plants annual. Culms 14-180 cm, solitary or branched at the base; internodes usually hollow throughout in hexaploids, usually solid for about 1 cm below the spike in diploids and tetraploids, even if hollow below. Sheaths open; auricles present, often deciduous at maturity; ligules membranous; blades flat, glabrous or pubescent. Inflorescences usually terminal spikes, distichous, with 1 spikelet per node, occasionally branched; internodes (0.5)1.4-8 mm; disarticulation in the rachis, the spikelets usually falling with the internode below to form a wedge-shaped diaspore, sometimes falling with the adjacent internode to form a barrel-shaped diaspore, domesticated taxa usually non-disarticulating, or disarticulating only under pressure. Spikelets 10-25(40) mm, usually 1-3 times the length of the internodes, appressed to ascending, with 2-9 florets, the distal florets often sterile. Glumes subequal, ovate, rectangular, or lanceolate, chartaceous to coriaceous, usually stiff, tightly to loosely appressed to the lower florets, with 1 prominent keel, at least distally, keels often winged and ending in a tooth or awn, a second keel or prominent lateral vein present in some taxa; lemmas keeled, chartaceous to coriaceous, 2 lowest lemmas usually awned, awns 3-23 cm, scabrous, distal lemmas unawned or awned, awns to 2 cm; paleas hyaline-membranous, splitting at maturity in diploid taxa; anthers 3. Caryopses tightly (hulled wheats) or loosely (naked wheats) enclosed by the glumes and lemmas, lemmas and paleas not adherent; endosperm flinty or mealy. x = 7. Haplomes A, B, D, and G. Triticum is the classical Latin name for wheat.
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Image of Dasypyrum villosum
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Image of Triticum orientale
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Image of Triticum polonicum
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Image of Triticum sinskajae
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