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Triticum
Family: Poaceae
Triticum image
ASU Fruit & Seed Collection  
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Laura A. Morrison. Flora of North America
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.
Vascular plants of NE US and adjacent Canada
Infl a thick, bilateral spike with sessile, solitary spikelets borne flatwise to the rachis; spikelets 2-5-fld, turgid but laterally somewhat flattened, disarticulating above the glumes and between the florets; glumes thick and firm, 3-several- veined, excentrically keeled, mucronate or awned from the bidentate summit; lemmas broad, excentrically keeled, firm, acute to awned, with 5-7 nonconvergent veins; caryopsis deeply furrowed in back; annual or winter-annual grasses. 20, Eurasia.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Species within inventory project: || << 1 - 50 taxa >>
Aegilops crassa
Image of Aegilops crassa
Aegilops cylindrica
Image of Aegilops cylindrica
Aegilops geniculata
Image of Aegilops geniculata
Aegilops neglecta
Image of Aegilops neglecta
Aegilops searsii
Image of Aegilops searsii
Aegilops tauschii
Image of Aegilops tauschii
Aegilops triuncialis
Image of Aegilops triuncialis
Aegilops vavilovii
Image of Aegilops vavilovii
Aegilops ventricosa
Image of Aegilops ventricosa
Agropyron cristatum
Image of Agropyron cristatum
Agropyron desertorum
Image of Agropyron desertorum
Agropyron fragile
Image of Agropyron fragile
Brachypodium mexicanum
Image of Brachypodium mexicanum
Brachypodium phoenicoides
Image of Brachypodium phoenicoides
Brachypodium sylvaticum
Image of Brachypodium sylvaticum
Bromus luzonensis
Image of Bromus luzonensis
Dasypyrum villosum
Image of Dasypyrum villosum
Distichlis spicata
Image of Distichlis spicata
Eleusine tristachya
Image of Eleusine tristachya
Elymus caninus
Image of Elymus caninus
Elymus cordilleranus
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not available
Elymus lanceolatus
Image of Elymus lanceolatus
Elymus magellanicus
Image of Elymus magellanicus
Elymus pilosus
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not available
Elymus repens
Image of Elymus repens
Elymus scabrifolius
Image of Elymus scabrifolius
Elymus sibiricus
Image of Elymus sibiricus
Elymus trachycaulus
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Elymus violaceus
Image of Elymus violaceus
Elytrigia atherica
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not available
Elytrigia obtusiflora
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not available
Eremopyrum bonaepartis
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Eremopyrum triticeum
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Leymus angustus
Image of Leymus angustus
Leymus arenarius
Image of Leymus arenarius
Leymus mollis
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Leymus racemosus
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Psathyrostachys juncea
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Pseudoroegneria spicata
Image of Pseudoroegneria spicata
Secale cereale
Image of Secale cereale
Thinopyrum elongatum
Image of Thinopyrum elongatum
Thinopyrum intermedium
Image of Thinopyrum intermedium
Thinopyrum ponticum
Image of Thinopyrum ponticum
Thinopyrum pungens
Image of Thinopyrum pungens
Thinopyrum pycnanthum
Image of Thinopyrum pycnanthum
Triticum aegilopoides
Image of Triticum aegilopoides
Triticum aestivum
Image of Triticum aestivum
Triticum aethiopicum
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not available
Triticum amyleum
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not available
Triticum araraticum
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not available
The National Science Foundation
Developments of SEINet, Symbiota, and associated specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)