Maxillaria longipetala is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Cymbidieae, subtribe: Maxillariinae,  
Genus Maxillaria   section: Fimbriatae 
Infraspecific taxa recognized within Maxillaria longipetala: infraspecific taxa
This species is found in Peru (Huanuco).