Crossing polyanthas with hybrid teas produced the floribunda class. These roses are shorter than the average hybrid tea and produce blooms in clusters. The grandifloras are crosses between hybrid teas and floribundas. Most of them resemble tall floribundas with high-centered blooms. Shrub is a "catch-all" term for roses that don't fit into any other category, such as David Austin's roses, the Meilland and Kordes landscape roses, and the hybrid rugosas.
