| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Solanaceae | Nicotiana tomentosiformis | Brassicaceae | Eutrema salsugineum | 4.65 | Dis similar |
| Solanaceae | Nicotiana tomentosiformis | Fabaceae | Glycine max | 8.53 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Fabaceae | Glycine soja | 8.55 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Malvaceae | Gossypium arboreum | 9.11 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Malvaceae | Gossypium hirsutum | 9.11 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Malvaceae | Gossypium raimondii | 9.03 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Asteraceae | Helianthus annuus | 5.44 | Moderately similar |
| Solanaceae | Nicotiana tomentosiformis | Malvaceae | Herrania umbratica | 8.96 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Euphorbiaceae | Hevea brasiliensis | 8.31 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Poaceae | Hordeum vulgare | 4.64 | Dis similar |
| Solanaceae | Nicotiana tomentosiformis | Euphorbiaceae | Jatropha curcas | 9.23 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Asteraceae | Lactuca sativa | 7.26 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Fabaceae | Lupinus angustifolius | 9.25 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Euphorbiaceae | Manihot esculenta | 8.68 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Fabaceae | Medicago truncatula | 9.07 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Cucurbitaceae | Momordica charantia | 8.22 | Similar |
| Solanaceae | Nicotiana tomentosiformis | Musaceae | Musa acuminata subsp. malaccensis | 6.34 | Moderately similar |
| Solanaceae | Nicotiana tomentosiformis | Solanaceae | Nicotiana attenuata | 9.91 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Solanaceae | Nicotiana sylvestris | 9.97 | Highly Similar |
| Solanaceae | Nicotiana tomentosiformis | Solanaceae | Nicotiana tabacum | 9.95 | Highly Similar |