Rosa laevigata

Rosa laevigata, or the Cherokee rose, is a white, fragrant rose native to southern China, Taiwan and Vietnam. It is an invasive species in countries including Australia, Japan and the United States. It is typically found in sunny environments such as mountain fields, field margins, and along streams, at elevations ranging from 200 to 1600 meters. In Tibet, its distribution is primarily confined to the sunny mountainous regions of southern Tibet, where it occurs at higher altitudes between 1500 and 3500 meters....read more on Wikipedia.