thorn forest and scrub

Forest and wetland forest underlying surface

mixed forest of fir and broadleaved forest

Pinus koraiensis-dominated broadleaved mixed forest in forest gap

box-thorn

branch thorn

chestnut thorn

cockspur thorn

Cucumber of green kinds with dense thorn

everlasting thorn

giant thorn bamboo

lateral thorn

Leaf thorn

no-thorn

number of thorn

Paper thorn

root thorn

Sallow Thorn

shell thorn