Dendrobium smillieae is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Dendrobieae, subtribe: Dendrobiinae,  
Genus Dendrobium   section: Calyptrochilus 
Infraspecific taxa recognized within Dendrobium smillieae: infraspecific taxa
This species is found in C. Malesia to N. Queensland.