Snowrose, Tree of a Thousand Stars, or Japanese Boxthorn, Serissa foetida (Serissa japonica) var. pleniflora, Rubiaceae.

Snowrose, Tree of a Thousand Stars, or Japanese Boxthorn, Serissa foetida (Serissa japonica) var. pleniflora, Rubiaceae. Southeast Asia, from India, and China to Japan. Serissa is a genus of flowering plants in the family Rubiaceae, containing only one species, Serissa foetida. It is native to open sub-tropical woodlands and wet meadows in southeast Asia, from India, and China to Japan. It is commonly called Snowrose, Tree of a thousand stars, or Japanese Boxthorn; and was formerly called Serissa japonica. It is often used in Japanese bonsai and many cultivars with double flowers or variegated leaves are also available.