PetronymphePetronymphe is a genus of flowering plants endemic to Mexico. It is placed in the family Asparagaceae, subfamily Brodiaeoideae.TaxonomyPublicationIt was published by Harold Emery Moore in 1951.SpeciesIt consists of two species:Petronymphe decora H.E.MoorePetronymphe rara J.Gut.DistributionPetronymphe rara is endemic to the Mexican state of Oaxaca, and Petronymphe decora is endemic to Guerrero.