| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Asteraceae | Lactuca sativa | Cucurbitaceae | Cucumis sativus | 8.70 | Similar |
| Asteraceae | Lactuca sativa | Cucurbitaceae | Cucurbita maxima | 8.66 | Similar |
| Asteraceae | Lactuca sativa | Cucurbitaceae | Cucurbita moschata | 8.72 | Similar |
| Asteraceae | Lactuca sativa | Cucurbitaceae | Cucurbita pepo subsp. pepo | 8.74 | Similar |
| Asteraceae | Lactuca sativa | Asteraceae | Cynara cardunculus var. scolymus | 9.08 | Highly Similar |
| Asteraceae | Lactuca sativa | Apiaceae | Daucus carota subsp. sativus | 7.55 | Similar |
| Asteraceae | Lactuca sativa | Malvaceae | Durio zibethinus | 6.32 | Moderately similar |
| Asteraceae | Lactuca sativa | Brassicaceae | Eutrema salsugineum | 7.23 | Similar |
| Asteraceae | Lactuca sativa | Fabaceae | Glycine max | 5.93 | Moderately similar |
| Asteraceae | Lactuca sativa | Fabaceae | Glycine soja | 5.96 | Moderately similar |
| Asteraceae | Lactuca sativa | Malvaceae | Gossypium arboreum | 8.04 | Similar |
| Asteraceae | Lactuca sativa | Malvaceae | Gossypium hirsutum | 8.04 | Similar |
| Asteraceae | Lactuca sativa | Malvaceae | Gossypium raimondii | 8.11 | Similar |
| Asteraceae | Lactuca sativa | Asteraceae | Helianthus annuus | 8.12 | Similar |
| Asteraceae | Lactuca sativa | Malvaceae | Herrania umbratica | 6.33 | Moderately similar |
| Asteraceae | Lactuca sativa | Euphorbiaceae | Hevea brasiliensis | 5.58 | Moderately similar |
| Asteraceae | Lactuca sativa | Poaceae | Hordeum vulgare | 4.13 | Dis similar |
| Asteraceae | Lactuca sativa | Euphorbiaceae | Jatropha curcas | 6.50 | Moderately similar |
| Asteraceae | Lactuca sativa | Asteraceae | Lactuca sativa | 10.00 | Highly Similar |
| Asteraceae | Lactuca sativa | Fabaceae | Lupinus angustifolius | 6.53 | Moderately similar |