| English  | annual ryegrass  |   |   | 1  | Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.   | 
| English  | Italian ryegrass  |   |   | 1  | Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.   | 
| English  | lovitto ryegrass  |   |   | 1  | Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).   | 
| English  | Westerwold ryegrass  |   |   | 1  | Terrell, E. E. 1968. A taxonomic revision of the genus Lolium. Techn. Bull. U.S.D.A. 1392:10.   | 
| English  | Westerwolds ryegrass  |   |   | 1  | Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).   | 
| Afrikaans  | Italiaanse raaigras  |   |   | 2  | Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa.  Plant Protection Research Institute, Handbook 12   | 
| English (Canada)  | Italian rye grass  |   | Agriculture & Agri-Food Canada official name  | 2  | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.   | 
| French  | ivraie multiflore  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| French  | ray-grass d'Italie  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| French (Canada)  | ivraie multiflore  |   | Agriculture & Agroalimentaire Canada nom officiel  | 2  | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.   | 
| German  | italienisches Raygras  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| German  | welsches Weidelgras  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| German  | westerwoldisches Weidelgras  |   |   | 2  | Terrell, E. E. 1968. A taxonomic revision of the genus Lolium. Techn. Bull. U.S.D.A. 1392:10.   | 
| Italian  | loglio italico  |   |   | 2  | International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.   | 
| Portuguese  | azevém  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Spanish  | ballico italiano  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Spanish  | raygrás italiano  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Swedish  | italienskt rajgräs  |   |   | 2  | Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)   | 
| Transcribed Chinese  | duo hua hei mai cao  |   |   | 2  | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).   |