noun
A rose of the Grandiflora class of roses created in the middle of the 20th century as backcrosses of hybrid teas and floribundas that fit neither category.
"My grandmother's garden has a beautiful grandiflora rose bush. "
grandiflora
/ˌɡræn.dɪˈflɔːr.ə/ /ˌɡræn.dəˈflɔr.ə/