Hoya obscura is a fast-growing, highly floriferous epiphytic wax plant native to the tropical rainforests of the island of Luzon, Philippines. Beloved by houseplant collectors, it is famous for its dramatic "sun-stressing" foliage that shifts colors in high light and its incredibly fragrant, fuzz-like flowers. It is also celebrated as one of the genetic parents of the incredibly popular hybrid, Hoya 'Sunrise' (the other parent being Hoya lacunosa).