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Species in the International Lactuca Database
| Species | Number |
| 30 | |
| Chondrilla juncea | 5 |
| Cicerbita plumieri | 1 |
| Lactuca aculeata | 2 |
| Lactuca altaica | 7 |
| Lactuca biennis | 4 |
| Lactuca canadensis | 2 |
| Lactuca dentata | 1 |
| Lactuca dissecta | 1 |
| Lactuca dregeana | 4 |
| Lactuca floridana | 1 |
| Lactuca georgica | 1 |
| Lactuca homblei | 1 |
| Lactuca indica | 8 |
| Lactuca livida | 4 |
| Lactuca perennis | 29 |
| Lactuca quercina | 4 |
| Lactuca raddeana | 1 |
| Lactuca saligna | 121 |
| Lactuca sativa | 10225 |
| Lactuca sativa x serriola | 19 |
| Lactuca serriola | 993 |
| Lactuca serriola x sativa | 3 |
| Lactuca sibirica | 1 |
| Lactuca sp. | 45 |
| Lactuca tatarica | 8 |
| Lactuca tenerrima | 6 |
| Lactuca viminea | 20 |
| Lactuca virosa | 141 |
| Mycelis muralis | 8 |
| Steptorhamphus tuberosus | 1 |
| Total | 11697 |