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1 Environment Agency of Japan, "Threatened Wildlife of Japan -Red Data Book 2nd ed.- Vol. 8. Vascular Plants" Japan Wildlife Research Center 664-, 2000
2 Kim, Y.H, "The first projects report on preservation and recovery strategies of rare and endangered plant species" Korea National Arboretum 546-, 2011
3 Regan, T.J., "The consistency of extinction risk classification protocols" 19 (19): 1969-1977, 2005
4 Cheffings, C.M, "The Vascular Plant Red Data List for Great Britain" Joint Nature Conservation Committee 1-116, 2005
5 Oldfield, S., "The Red List of Oakes" Botanic Gardens Conservation International 32-, 2007
6 Gibbs, D., "The Red List of Maples" Botanic Gardens Conservation International 41-, 2009
7 Kim, C.H, "Taxonomic identities of some endemic Korean vascular plants" 30 (30): 355-361, 2000
8 Ministry of Environment, "Release copy of “New process of Endangered species conservation - candidate species conservation”"
9 Son, K.-N, "Red Data Book of DPR Korea (Plant)" MAB National Committee of DPR Korea. Minchuchosensa 177-, 2005
10 Chang, C.S, "Reconsideration of rare and endangered plant species in Korea based on the IUCN Red List Categories" 31 (31): 107-142, 2001
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