"Roses" that are not roses
Here is my list of "roses" that aren't roses...
Alpine Rose = Rhododendron ferrugineum
Althaea rosea = Hollyhock
Catharanthus roseus = Lochnera Rosea = Madagascar periwinkle
Christmas rose = Helleborus
Cotton Rose = Hibiscus mutabilis
Guelder Rose = Viburnum opulus
Lapageria rosea = Chilean Bellflower
Primrose – according to an encyclopedia, primroses are not roses; their scientific classification is from "the family Primulaceae of the order Primulales".
Rockrose = Cistus
Rosa de Porcelana = Nicolaia elatior
Rose Apple = syzygium
Rosebay = Rhododendron aureum
Rose laurel = a shrub
Rose Mallow = Hibiscus
Rose Moss = Portulaca grandiflora
Rose of Sharon = Hibiscus
Snow Rose = Helleborus niger
Sturt's Desert Rose = Gossypium sturtianum
Tuberose = Polianthes tuberosa
Zephyranthes rosea = Cuban zephyrlily