plants can have negative impacts on the diversity of local ecosystems once established. Such naturalised pests include Acaena, Cotoneaster, Crataegus, Pyracantha, and Rosa. In Bulgaria and parts of western Asia, the production of rose oil from fresh flowers such as Rosa damascena, Rosa gallica, and other species is an important economic industry. Gallery The family Rosaceae covers a wide range of trees, bushes and plants. References External links Rosaceae at the DELTA Online Families of Flowering Plants Rosales Rosid families Extant Cretaceous first appearances