| Bromus japonicus Thunb. | Accepted |  | WCSP |  | 
	
		| Bromus japonicus Houtt. | Unresolved |  | TRO |  | 
	
		| Bromus japonicus var. acutidens Melderis | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. aegyptiacus (Tausch) Asch., Schweinf. & Muschl. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. anatolicus (Boiss. & Heldr.) Pénzes | Accepted |  | WCSP |  | 
	
		| Bromus japonicus var. anatolicus (Boiss. & Heldr.) Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus f. bosnensis Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. breviramosus Roshev. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. chiapporianus Hack. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. chiapporianus (De Not.) Pènzes | Accepted |  | TRO |  | 
	
		| Bromus japonicus f. diffusus (Dumort.) Soó | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. falconeri (Stapf) R.R.Stewart | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. glabriglumis Tzvelev | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. grandis (Velen.) Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. grossus (Celak.) Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. incanus Hack. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. japonicus | Synonym |  | TRO |  | 
	
		| Bromus japonicus var. laxus Podp. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus f. luxurians (Döll) Soó | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. multiflorus Kozuharov, Stoeva & Kuzmanov | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. noeanus (Boiss.) Pènzes | Synonym |  | TRO |  | 
	
		| Bromus japonicus var. paniculatus (Kuntze) Roshev. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. pectinatus (Thunb.) Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. pendulus Schur ex Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. phrygius (Boiss.) Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. phrygius (Boiss.) Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. porrectus Hack. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. rapaicsii Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. sinaicus Hack. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. sooi Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. sooi (Pénzes) Soó | Synonym |  | WCSP |  | 
	
		| Bromus japonicus subsp. subsquarrosus (Borbás) Pénzes | Synonym |  | WCSP |  | 
	
		| Bromus japonicus f. tenuis (Prodán) Todor | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. tenuis Prodán | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. tenuis Prod. | Synonym |  | TRO |  | 
	
		| Bromus japonicus var. transsylvanicus (Auersw.) Hayek | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. umbrosus Hack. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus f. variegatus (Schur) Soó | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. variegatus (Schur) Todor | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. velutinus (W.D.J.Koch) Asch. & Graebn. | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. vestitus (Schrad.) Halácsy | Synonym |  | WCSP |  | 
	
		| Bromus japonicus f. zomboriensis Prodán | Synonym |  | WCSP |  | 
	
		| Bromus japonicus var. zomboriensis (Prodán) Pénzes | Synonym |  | WCSP |  |