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Taxon: Thinopyrum intermedium (Host) Barkworth & D. R. Dewey

Genus: Thinopyrum
Family: Poaceae (alt. Gramineae) subfamily: Pooideae tribe: Triticeae
Nomen number: 314145
Place of publication: Amer. J. Bot. 72:772. 1985
Name verified on: 21-Dec-2007 by ARS Systematic Botanists. Last updated: 21-Dec-2007
Species priority site is: Western Regional PI Station (W6).
Accessions: 253 in National Plant Germplasm System.
  • all available ) NPGS accessions. or .
  • all available ) NPGS accessions by country.
  • Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

See also subordinate taxa:

Common names:

  • hairy wheatgrass   (Source: F NAmer ) – English   [Thinopyrum intermedium subsp. barbulatum]
  • intermediate wheatgrass   (Source: World Econ Pl ) – English   [Thinopyrum intermedium subsp. intermedium]
  • pubescent wheatgrass   (Source: World Econ Pl ) – English   [Thinopyrum intermedium subsp. barbulatum]
  • chiendent intermédiaire   (Source: Dict Rehm [as Agropyron intermedium]) – French   [Thinopyrum intermedium subsp. intermedium]
  • graugrüne Quecke   (Source: Dict Rehm [as Agropyron intermedium]) – German   [Thinopyrum intermedium subsp. intermedium]
  • agropiro intermedio   (Source: Mult Glossary Crops ) – Italian   [Thinopyrum intermedium subsp. intermedium]
  • agropiro villoso   (Source: Mult Glossary Crops ) – Italian   [Thinopyrum intermedium subsp. intermedium]
  • pyrej srednyj   (Source: Mansf Ency ) – Transliterated Russian   [Thinopyrum intermedium subsp. intermedium]
  • lastón azul   (Source: Dict Rehm [as Agropyron intermedium]) – Spanish   [Thinopyrum intermedium subsp. intermedium]
  • trubbkvickrot   (Source: Vara kulturvaxt namn ) – Swedish

Economic importance:

  • Gene sources: disease resistance for wheat   (fide Genome 52:544. 2009)
  • Gene sources: tertiary genetic relative of wheat   (based on hybrids with Triticum aestivum fide Genome 52:538. 2009)

Distributional range:

    Western Asia: Iran; Iraq [n.]; Syria; Turkey
    Caucasus: Armenia; Azerbaijan; Georgia
    Middle Asia: Kazakhstan [s.]; Kyrgyzstan; Tajikistan; Turkmenistan; Uzbekistan
    Indian Subcontinent: Pakistan - Baluchistan
    Middle Europe: Austria; Czech Republic; Germany; Hungary; Poland; Slovakia; Switzerland
    East Europe: Belarus; Lithuania; Moldova; Russian Federation - European part [s.w.]; Ukraine [incl. Krym]
    Southeastern Europe: Albania; Bulgaria; Croatia; Greece [incl. Crete]; Italy [n.]; Romania; Serbia; Slovenia
    Southwestern Europe: France; Portugal; Spain


  • Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
  • Ayala-Navarrete, L. et al. 2009. Comparison of Thinopyrum intermedium derivatives carrying barley yellow dwarf virus resistance in wheat. Genome 52:537–546. [this study confirms that Thinopyrum intermedium carries two genes conferring resistance to barley dwarf virus].
  • Englert, J. M. et al. 1999–. USDA-NRCS Improved conservation plant materials released by NRCS and cooperators. [accepts].
  • Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). [treats as Elytrigia intermedia (Host) Nevski].
  • FNA Editorial Committee. 1993–. Flora of North America.
  • Han, F. et al. 2004. Genomic constitution and variation in five partial amphiploids of wheat - Thinopyrum intermedium as revealed by GISH, multicolor GISH and seed storage protein analysis. Theor. Appl. Genet. 109:1070–1076.
  • Jiang, J. et al. 1994. Recent advances in alien gene transfer in wheat. Euphytica 73:199–212. [as Agropyron intermedium].
  • Markle, G. M. et al., eds. 1998. Food and feed crops of the United States, ed. 2.
  • Nasir, E. & S. I. Ali, eds. 1970–. Flora of [West] Pakistan. [treats as Elymus hispidus (Opiz) Melderis].
  • Rechinger, K. H., ed. 1963–. Flora iranica. [treats as Agropyron intermedia (Host) P. Beauv.].
  • Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:653. [introduced].
  • Tzvelev, N. N. 1976. Zlaki SSSR. [treats as Elytrigia intermedia (Host) Nevski].
  • Wang, R. R.-C. et al. 2010. Analyses of Thinopyrum bessarabicum, T. elongatum, and T. junceum chromosomes using EST-SSR markers. Genome 53:1083–1089.
  • Wang, R. R.-C. 2011. Chapter 2. Agropyron and Psathyrostachys. Pp. 77–108 in: Kole, C., ed., Wild crop relatives: genomic and breeding resources, cereals.


Check other web resources for Thinopyrum intermedium (Host) Barkworth & D. R. Dewey:

Check other web resources for images:

  • Google Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: (13 October 2015)

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