| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Solanaceae | Solanum tuberosum | Euphorbiaceae | Hevea brasiliensis | 8.01 | Similar |
| Solanaceae | Solanum tuberosum | Poaceae | Hordeum vulgare | 4.33 | Dis similar |
| Solanaceae | Solanum tuberosum | Euphorbiaceae | Jatropha curcas | 8.99 | Similar |
| Solanaceae | Solanum tuberosum | Asteraceae | Lactuca sativa | 7.49 | Similar |
| Solanaceae | Solanum tuberosum | Fabaceae | Lupinus angustifolius | 9.01 | Highly Similar |
| Solanaceae | Solanum tuberosum | Euphorbiaceae | Manihot esculenta | 8.36 | Similar |
| Solanaceae | Solanum tuberosum | Fabaceae | Medicago truncatula | 9.46 | Highly Similar |
| Solanaceae | Solanum tuberosum | Cucurbitaceae | Momordica charantia | 8.10 | Similar |
| Solanaceae | Solanum tuberosum | Musaceae | Musa acuminata subsp. malaccensis | 6.06 | Moderately similar |
| Solanaceae | Solanum tuberosum | Solanaceae | Nicotiana attenuata | 9.53 | Highly Similar |
| Solanaceae | Solanum tuberosum | Solanaceae | Nicotiana sylvestris | 9.62 | Highly Similar |
| Solanaceae | Solanum tuberosum | Solanaceae | Nicotiana tabacum | 9.58 | Highly Similar |
| Solanaceae | Solanum tuberosum | Solanaceae | Nicotiana tomentosiformis | 9.60 | Highly Similar |
| Solanaceae | Solanum tuberosum | Poaceae | Oryza brachyantha | 4.23 | Dis similar |
| Solanaceae | Solanum tuberosum | Poaceae | Oryza sativa Japonica Group | 4.24 | Dis similar |
| Solanaceae | Solanum tuberosum | Poaceae | Panicum hallii | 3.92 | Dis similar |
| Solanaceae | Solanum tuberosum | Poaceae | Panicum virgatum | 4.12 | Dis similar |
| Solanaceae | Solanum tuberosum | Fabaceae | Phaseolus vulgaris | 8.40 | Similar |
| Solanaceae | Solanum tuberosum | Fabaceae | Prosopis alba | 8.71 | Similar |
| Solanaceae | Solanum tuberosum | Brassicaceae | Raphanus sativus | 4.82 | Dis similar |