Dendrobium insigne is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Dendrobieae, subtribe: Dendrobiinae,  
Genus Dendrobium   section: Grastidium 
Infraspecific taxa recognized within Dendrobium insigne: infraspecific taxa
This species is found in Maluku to Solomon Is., Queensland (Torres Strait Is.).