| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Asteraceae | Helianthus annuus | Chenopodiaceae | Beta vulgaris subsp. vulgaris | 6.07 | Moderately similar |
| Asteraceae | Helianthus annuus | Poaceae | Brachypodium distachyon | 4.12 | Dis similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Brassica juncea | 9.06 | Highly Similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Brassica napus | 9.09 | Highly Similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Brassica oleracea var. oleracea | 9.03 | Highly Similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Brassica rapa | 9.12 | Highly Similar |
| Asteraceae | Helianthus annuus | Fabaceae | Cajanus cajan | 4.51 | Dis similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Camelina sativa | 9.59 | Highly Similar |
| Asteraceae | Helianthus annuus | Brassicaceae | Capsella rubella | 9.83 | Highly Similar |
| Asteraceae | Helianthus annuus | Solanaceae | Capsicum annuum | 5.68 | Moderately similar |
| Asteraceae | Helianthus annuus | Chenopodiaceae | Chenopodium quinoa | 5.82 | Moderately similar |
| Asteraceae | Helianthus annuus | Fabaceae | Cicer arietinum | 5.94 | Moderately similar |
| Asteraceae | Helianthus annuus | Rutaceae | Citrus clementina | 5.18 | Moderately similar |
| Asteraceae | Helianthus annuus | Rutaceae | Citrus sinensis | 5.18 | Moderately similar |
| Asteraceae | Helianthus annuus | Cucurbitaceae | Cucumis melo | 7.07 | Similar |
| Asteraceae | Helianthus annuus | Cucurbitaceae | Cucumis sativus | 6.95 | Moderately similar |
| Asteraceae | Helianthus annuus | Cucurbitaceae | Cucurbita maxima | 7.49 | Similar |
| Asteraceae | Helianthus annuus | Cucurbitaceae | Cucurbita moschata | 7.67 | Similar |
| Asteraceae | Helianthus annuus | Cucurbitaceae | Cucurbita pepo subsp. pepo | 7.71 | Similar |
| Asteraceae | Helianthus annuus | Asteraceae | Cynara cardunculus var. scolymus | 8.76 | Similar |