Ornithocephalus gladiatus is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Cymbidieae, subtribe: Oncidiinae,  
Genus Ornithocephalus   section: Ornithocephalus 
Infraspecific taxa recognized within Ornithocephalus gladiatus: infraspecific taxa
This species is found in Grenada to S. Trop. America, Central Vietnam.