| Platanthera leptopetala (Rydb.) R.M. Bateman, 2003 |
| Platanthera leucostachys Lindl., 1835 |
| Platanthera limosa Lindl., 1840 |
| Platanthera michauxii (Nutt.) Alph. Wood, 1861 |
| Platanthera neottioides A. Rich. & Galeotti, 1845 |
| Platanthera nubigena A. Rich. & Galeotti, 1845 |
| Platanthera propinqua (A. Rich. & Galeotti) Soto Arenas & Salazar, 2011 |
| Platanthera sparsiflora (S. Watson) Schltr., 1899 |
| Platanthera sparsiflora var. brevifolia (Greene) Luer, 1975 |
| Platanthera volcanica Lindl., 1840 |
| Platypus Small & Nash, 1903 |
| Platypus altus (L.) Small, 1903 |
| Platypus papilliferus Small & Nash, 1903 |
| Platystele Schltr., 1910 |
| Platystele bernoullii Luer, 2000 |
| Platystele bulbinella Schltr., 1910 |
| Platystele caudatisepala (C. Schweinf.) Garay, 1974 |
| Platystele compacta (Ames) Ames, 1922 |
| Platystele halbingeriana (R.E. Schult.) Garay, 1974 |
| Platystele imperialis Archila, Chiron & Szlach., 2016 |