| Alfalfa/medic group (Sinorhizobium meliloti) |
Alfalfa, Medic, Yellow or white sweet clover |
| Cowpea, peanut, and lespedeza group (Bradyrhizobium sp. (Vigna)) |
Common lespedeza, Cowpea, Peanut, Velvet bean |
| Crownvetch group (Rhizobium sp.) |
Crownvetch |
| Dry and snap bean group (Rhizobium leguminosarum biovar phaseoli) |
Kidney beans, Snap beans, String beans, Wax beans |
| Lupin group (Bradyrhizobium sp. (Lupinus)) |
Lupin |
| Soybean group (Bradyrhizobium japonicum) |
Soybeans |
| Trefoil group (Rhizobium loti) |
Birdsfoot trefoil |
| True clover group (Rhizobium leguminosarum biovar trifoli) |
Crimson clover, Red clover, White clover, Other true clovers |
| Vetch/pea group (Rhizobium leguminosarum biovar viceae) |
Austrian winter pea, Common vetch, Faba bean, Field pea, Flat pea, Garden pea, Hairy vetch, Lentil, Sweet pea |