Tree bark identification dataset containing 6,918 raw images of total 54 tree species. The pre-processed dataset utilized in the publications will be uploaded soon (currently available on request). The images were captured in parks and forests near Seoul, Republic of Korea. The list of species are as follows: - Abies holophylla - Abies nephrolepis - Acer palmatum - Acer palmatum var. amoenum - Acer pictum subsp. mono - Acer pseudosieboldianum - Aesculus turbinata - Alnus hirsut - Alnus japonica - Berchemia berchemiifolia - Betula platyphylla var. japonica - Carpinus laxiflora - Carpinus tschonoskii - Castanea crenata - Cercidiphyllum japonicum - Chamaecyparis pisifera - Chionanthus retusus - Cornus controversa - Cornus kousa - Fraxinus rhynchophylla - Ginkgo biloba - Hovenia dulcis - Kalopanax septemlobus - Maackia amurensis - Magnolia denudata - Magnolia obovata - Metasequoia glyptostroboides - Morus bombycis - Pinus densiflora - Pinus koraiensis - Pinus rigida - Pinus strobus - Pinus × rigitaeda - Platanus occidentalis - Populus Tomentiglandulosa - Prunus serrulata - Prunus × yedoensis - Quercus acutissima - Quercus alba - Quercus aliena - Quercus dentata - Quercus mongolica - Quercus serrata - Quercus variabilis - Quercus × urticifolia - Robinia pseudoacacia - Sorbus alnifolia - Stewartia pseudocamellia - Styphnolobium japonicum - Styrax japonicus - Taxodium distichum - Tilia amurensis - Ulmus parvifolia - Zelkova serrata

This work was supported by Korea Forest Service (Korea Forestry Promotion Institute), grant number 2018113B10-2020-BB01 and 2020185D10-2122-AA02.