Rose in greenhouses, and in warmer countries they may also be grown under cover in order to ensure that the flowers are not damaged by weather and that pest and disease control can be carried out effectively. Significant quantities are grown in some tropical countries, and these are shipped by air to markets across the world. Some kind of roses are artificially coloured using dyed water, like rainbow roses. Rose perfumes are made from rose oil (also called attar of roses), which is a mixture of volatile essential oils obtained by steam distilling the crushed petals of roses. An associated product
Cannabis flower essential oil in traces are sabinene, α-terpinene, 1,8-cineole (eucalyptol), pulegone, γ-terpinene, terpineol-4-ol, bornyl acetate, α-copaene, alloaromadendrene, viridiflorene, β-bisabolene, γ-cadinene, trans-β-farnesene, trans-nerolidol, and β-bisabolol. The major alkane present in an essential oil obtained by extraction and steam distillation was the n-C₂₉ alkane nonacosane (55.8 and 10.7%, respectively). The various terpenes in cannabis have antifungal, antimicrobial, antiviral and insect repellent functions that could be commercially valuable when used externally. Other, medicinal (internal) uses could linalool as an antianxiety/sedative agent, and myrcene as an analgesic, sedative, anti-inflammatory and muscle relaxant. Cannabis flower essential oil Cannabis flower essential oil, also known as hemp essential oil, is