Flora of China - Key to Polystachya
Flora of China - Key to Porolabium
Flora of China - Key to Porpax
Flora of China - Key to Renanthera
Flora of China - Key to Risleya
Flora of China - Key to Saccolabiopsis
Flora of China - Key to Schoenorchis
Flora of China - Key to Smithorchis
Flora of China - Key to Smitinandia
Flora of China - Key to Spiranthes
Flora of China - Key to Staurochilus
Flora of China - Key to Stereochilus
Flora of China - Key to Stereosandra
Flora of China - Key to Sunipia
Flora of China - Key to Taeniophyllum
Flora of China - Key to Tangtsinia
Flora of China - Key to Thelasis
Flora of China - Key to Thrixspermum
Flora of China - Key to Trichotosia
Flora of China - Key to Tsaiorchis