Triticum aestivum L. subsp. aestivum

no known common names


Info

Subfamily: Pooideae
Genus etymology:
Species etymology:
Photosynthetic type: C3 (cool season)
Nativity: questionable - intentional
First recorded in Hawaiʻi: 1916

Map

 Distribution of Triticum aestivum subsp. aestivum in Hawaiʻi.

Inflorescence

Triticum aestivum subsp. aestivum Inflorescenceimage credit: Joss_Carr
Triticum aestivum subsp. aestivum Inflorescenceimage credit: Dave_Richardson

Plant

Triticum aestivum subsp. aestivum Plantimage credit: Joss_Carr

Description

Culms 14-150 cm; nodes glabrous or pubescent; internodes usually hollow, even immediately below the spikes. Blades 6-15(20) mm wide, glabrous or pubescent. Spikes (3.5)6-18 cm, usually thicker than wide to about as thick as wide, wider than thick in compact forms; rachises shortly ciliate at the nodes and margins, not disarticulating. Spikelets 10-15 mm, appressed or ascending, with 3-9 florets, 2-5 seed-forming. Glumes 6-12 mm, coriaceous, loosely appressed to the lower florets, usually keeled in the distal 1/2, sometimes prominently keeled to the base, terminating in a tooth or awn, awns to 4 cm; lemmas 10-15 mm, toothed or awned, awns to 12 cm; paleas not splitting at maturity. Endosperm mealy to flinty. Haplomes AuBD. 2n = 42.
(Description source: Barkworth, M.E., Capels, K.M. & Long, S. (eds.) 1993. Flora of North America, north of Mexico. Volume 24. Magnoliophyta: Commelinidae (in part): Poaceae, Part 1. Oxford University Press, New York. 911 pp. http://floranorthamerica.org/Triticum_aestivum )