The other species in the genus Platanthera:

Platanthera hologlottis / Mizuchidori
Platanthera mandarinorum / Hashinagayamasagisou
Platanthera mandarinorum var. brachycentron / Yamasagisou
Platanthera mandarinorum var. neglecta / Maisagisou
Platanthera minor / Oobanotonbosou
Platanthera nipponica / Kobanotonbosou
Platanthera sachalinensis / Ooyamasagisou

Platanthera hologlottis / Mizuchidori