The hybrid Japanese Hirato rhododendron has invaded Yangmingshan, and the rhododendrons which flower along the mountain roads of Wulai in spring are artificially bred hothouse plants.
混種的日本平戶杜鵑，佔領了陽明山；春天的烏來，山路夾道旁是來自溫室的人工育種杜鵑。