S. japonica may refer to: Saccharina japonica, the Dashi kombu, a marine brown alga species extensively cultivated in China, Japan and Korea Salix japonica, a willow species native to central Honshū in Japan Scopolia japonica, the Japanese belladonna, a flowering plant species Sillago japonica, the Japanese whiting, Japanese sillago or Shiro-gisu, a common coastal marine fish species found in Korea, China and Taiwan Skimmia japonica, a shrub species native to Japan Spiraea japonica, the Japanese spiraea, a plant species native to Japan, China and Korea Squatina japonica, the Japanese angelshark, a shark species found in the western Pacific from Japan, the Yellow Sea, Korea, northern China and the Philippines Stigmella japonica, a moth species only known from Hokkaido in Japan Strioterebrum japonica, a sea snail species Swertia japonica, a flowering plant species Synonyms Scilla japonica, a synonym for Barnardia japonica, a plant species Serissa japonica, a synonym for Serissa foetida, the snowrose, tree of a thousand stars or Japanese boxthorn, a flowering plant species native to India, China to Japan Sophora japonica, a synonym for Styphnolobium japonicum, the pagoda tree, a small tree or shrub species native to eastern Asia See also Japonica (disambiguation)