Polyanthas
Through the infusion of a few clustering species roses (particularly Rosa multiflora and its rambling hybrids, and to a lesser extant, R. wichurana) the small-flowered bouquet clustering was developed in repeat-blooming roses, the Tea and China contributing their remontant genes. The breeding of the early Polyanthas began in the 1870s. By the 1930s, these roses had undergone a substantial transformation, from dwarf, compact bushes with small flowers to much more robust plants with large foliage and flowers. It was then recognized that a new group of roses had emerged, initially dubbed Hybrid Polyanthas, a name subsequently changed to Floribundas.