| English | annual sow thistle | | | 1 | Beetle, A. A. 1970. Recommended plant names. Univ. Wyoming Agr. Exp. Sta. Res. J. 31 |
| English | common milk thistle | | | 1 | Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource). |
| English | common sow thistle | | | 1 | Lazarides, M. & B. Hince. 1993. CSIRO Handbook of Economic Plants of Australia |
| English | hare's-lettuce | | | 1 | 1961. Webster's third new international dictionary. |
| English | milk thistle | | | 1 | Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource). |
| English | smooth sow thistle | | | 1 | Botanical Society of the British Isles. BSBI taxon database (on-line resource). |
| English | sow thistle | | | 1 | Allan, H. H. B. et al. 1961-. Flora of New Zealand. |
| English (Canada) | annual sow-thistle | | Agriculture & Agri-Food Canada official name | 2 | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 279-280. |
| French | laiteron | | | 2 | FNA Editorial Committee. 1993-. Flora of North America. |
| French (Canada) | laiteron potager | | Agriculture & Agroalimentaire Canada nom officiel | 2 | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 279-280. |
| German | Kohl-Gänsedistel | | | 2 | Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen |
| Portuguese (Brazil) | chicória-brava | | | 2 | Groth, D. 2005. pers. comm. Note: re. Brazilian common names |
| Portuguese (Brazil) | serralha-lisa | | | 2 | Groth, D. 2005. pers. comm. Note: re. Brazilian common names |
| Spanish | cerraja | | | 2 | Correa, J. E. & H. Y. Bernal. 1991. Especies vegetales promisorias de los paises del Convenio Andres Bello. 6:87-106. |
| Swedish | kålmolke | | | 2 | Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource) |
| Transcribed Chinese | ku ju cai | | | 2 | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |