Paphiopedilum dianthum is accepted species in  the family Orchidaceae  subfamily: Cypripedioideae,  
Genus Paphiopedilum   subgenus Polyantha  section: Mystropetalum 
Infraspecific taxa recognized within Paphiopedilum dianthum: infraspecific taxa
This species is found in China (SE. Yunnan, SW. Guizhou, SW. Guangxi) to N. Vietnam.