National BioResource Project (NBRP)::KOMUGI -Integrated Wheat Science Database- : Wheat Taxonomy

Wheat Taxonomy

Classification of Triticum according to Percival 1921.

Percival (1921) [reference] produced the first English-language monograph of Triticum, The Wheat Plant. Although out-of-date for its treatment of genetics and plant breeding, the taxonomic and morphological components of the monograph are still in use today. Percival was unusual for designating the wild species as progeniotrs of the domesticated species. His classification is presented here, in its original form with corrections in the authority citations.

Triticum L.

Species I.
	Triticum aegilopoides Balansa
Race I.
	Triticum monococcum L.
Species II.
	Triticum dicoccoides (Körn. ex Asch. & Graebner) Schweinf.
Race II.
	Triticum dicoccum Schrank ex Schübler
Race III.
	Triticum orientale Percival
Race IV.
	Triticum durum Desf.
Race V.
	Triticum polonicum L.
Race VI.
	Triticum turgidum L.
Race VII.
	Triticum pyramidale Percival
Race VIII.
	Triticum vulgare Vill.
Race IX.
	Triticum compactum Host
Race X.
	Triticum sphaerococcum Percival
Race XI.
	Triticum spelta L.