Herbaceous perennial, biannual or annual plants.
About 60 species in Bulgaria.
Trifolium alpestre - Owl Head Clover
Trifolium arvense - Rabbit-foot Clover
Trifolium hirtum - Rose Clover
Trifolium incarnatum - Crimson Clover
Trifolium michelianum - Balansa Clover
Trifolium nigrescens - Small White Clover
Trifolium ochroleucon - Sulphur Clover
Trifolium repens - White Clover
Trifolium spadiceum - Brown Moor Clover
Trifolium strictum - Upright Clover