| Family1 | Species1 | Family2 | Species2 | SCUS score | Similarity |
| Poaceae | Hordeum vulgare | Brassicaceae | Raphanus sativus | 3.89 | Dis similar |
| Poaceae | Hordeum vulgare | Euphorbiaceae | Ricinus communis | 4.51 | Dis similar |
| Poaceae | Hordeum vulgare | Poaceae | Saccharum officinarum | 5.46 | Moderately similar |
| Poaceae | Hordeum vulgare | Pedaliaceae | Sesamum indicum | 6.02 | Moderately similar |
| Poaceae | Hordeum vulgare | Poaceae | Setaria italica | 9.58 | Highly Similar |
| Poaceae | Hordeum vulgare | Poaceae | Setaria viridis | 9.51 | Highly Similar |
| Poaceae | Hordeum vulgare | Solanaceae | Solanum lycopersicum | 4.32 | Dis similar |
| Poaceae | Hordeum vulgare | Solanaceae | Solanum melongena | 4.82 | Dis similar |
| Poaceae | Hordeum vulgare | Solanaceae | Solanum pennellii | 4.28 | Dis similar |
| Poaceae | Hordeum vulgare | Solanaceae | Solanum tuberosum | 4.33 | Dis similar |
| Poaceae | Hordeum vulgare | Poaceae | Sorghum bicolor | 9.59 | Highly Similar |
| Poaceae | Hordeum vulgare | Chenopodiaceae | Spinacia oleracea | 4.79 | Dis similar |
| Poaceae | Hordeum vulgare | Asteraceae | Tagetes erecta | 0.29 | Dis similar |
| Poaceae | Hordeum vulgare | Malvaceae | Theobroma cacao | 4.97 | Dis similar |
| Poaceae | Hordeum vulgare | Poaceae | Triticum aestivum | 9.71 | Highly Similar |
| Poaceae | Hordeum vulgare | Poaceae | Triticum dicoccoides | 9.40 | Highly Similar |
| Poaceae | Hordeum vulgare | Fabaceae | Vigna angularis | 5.33 | Moderately similar |
| Poaceae | Hordeum vulgare | Fabaceae | Vigna radiata var. radiata | 5.27 | Moderately similar |
| Poaceae | Hordeum vulgare | Fabaceae | Vigna unguiculata | 5.34 | Moderately similar |
| Poaceae | Hordeum vulgare | Poaceae | Zea mays | 9.42 | Highly Similar |