About Quercus salicina Blume
Quercus salicina Blume is an oak species native to Japan, South Korea, and Taiwan. It is classified within the genus Quercus, placed in subgenus Cerris and section Cyclobalanopsis. The larvae of three lepidopteran species — the Japanese oakblue (Arhopala japonica), Acrocercops vallata, and Marumba sperchius — feed on Quercus salicina. Several compounds have been identified in this tree, including the tannin stenophyllanin A, other quinic acid gallates, and the triterpene friedelin, which can be isolated from the tree’s leaves.
