found: Work cat: Recovery strategy for the nodding pogonia (Triphora trianthophoros) in Canada, 2016.
found: NatureServe website, July 22, 2016:(Triphora trianthophora, Nodding pogonia; Other common name - Threebirds; Genus - Triphora; Family - Orchidaceae; Order - Orchidales; Class - Monocotyledoneae; Phylum - Anthophyta; Kingdom - Plantae)
found: ITIS website, July 22, 2016:(Triphora trianthophoros, Synonym - Triphora trianthophora; Common names - Threebirds, Three birds orchid; Genus - Triphora; Family - Orchidaceae; Order - Asparagales; Class - Magnoliopsida; Division - Tracheophyta; Kingdom - Plantae)
found: Encyclopedia of Life website, July 22, 2016:(Triphora trianthophora; Three birds orchid; Other common names - Nodding pogonia)
found: GBIF, Sept. 6, 2016(Triphora trianthophora; accepted species; common names: three birds orchid, threebirds; synonyms: Arethusa trianthophoros, Pogonia trianthophora, Pogonia trianthophoros, Tirphora trianthophoros; family: Orchidaceae)