L. japonica

L. japonica may refer to:
 * Laminaria japonica, a marine species of brown algae
 * Leptanilla japonica, an ant species in the genus Leptanilla
 * Limnophila japonica, a crane fly species in the genus Limnophila
 * Lipoptena japonica, a louse fly species in the genus Lipoptena
 * Lonchoptera japonica, a spear-winged fly species in the genus Lonchoptera
 * Lonicera japonica, the Japanese honeysuckle or suikazura, a flowering plant species native to eastern Asia
 * Luehdorfia japonica, the Japanese luehdorfia, a butterfly species found in Japan and China