All Species in Gymnosiphon
- Cat's Milk (Gymnosiphon refractus)
- Gymnosiphon affinis (Gymnosiphon affinis)
- Gymnosiphon afro-orientalis (Gymnosiphon afro-orientalis)
- Gymnosiphon aphyllus (Gymnosiphon aphyllus)
- Gymnosiphon bekensis (Gymnosiphon bekensis)
- Gymnosiphon brachycephalus (Gymnosiphon brachycephalus)
- Gymnosiphon breviflorus (Gymnosiphon breviflorus)
- Gymnosiphon capitatus (Gymnosiphon capitatus)
- Gymnosiphon constrictus (Gymnosiphon constrictus)
- Gymnosiphon cymosus (Gymnosiphon cymosus)
- Gymnosiphon danguyanus (Gymnosiphon danguyanus)
- Gymnosiphon divaricatus (Gymnosiphon divaricatus)
- Gymnosiphon fimbriatus (Gymnosiphon fimbriatus)
- Gymnosiphon fonensis (Gymnosiphon fonensis)
- Gymnosiphon guianensis (Gymnosiphon guianensis)
- Gymnosiphon longistylus (Gymnosiphon longistylus)
- Gymnosiphon marieae (Gymnosiphon marieae)
- Gymnosiphon mayottensis (Gymnosiphon mayottensis)
- Gymnosiphon minahassae (Gymnosiphon minahassae)
- Gymnosiphon minutus (Gymnosiphon minutus)
- Gymnosiphon neglectus (Gymnosiphon neglectus)
- Gymnosiphon okamotoi (Gymnosiphon okamotoi)
- Gymnosiphon oliganthus (Gymnosiphon oliganthus)
- Gymnosiphon panamensis (Gymnosiphon panamensis)
- Gymnosiphon pauciflorus (Gymnosiphon pauciflorus)
- Gymnosiphon philippinensis (Gymnosiphon philippinensis)
- Gymnosiphon queenslandicus (Gymnosiphon queenslandicus)
- Gymnosiphon recurvatus (Gymnosiphon recurvatus)
- Gymnosiphon saccatum (Gymnosiphon saccatum)
- Gymnosiphon samoritoureanus (Gymnosiphon samoritoureanus)
- Gymnosiphon suaveolens (Gymnosiphon suaveolens)
- Gymnosiphon syceorosensis (Gymnosiphon syceorosensis)
- Gymnosiphon tenellus (Gymnosiphon tenellus)
- Gymnosiphon urbani (Gymnosiphon urbani)
- Gymnosiphon usambaricus (Gymnosiphon usambaricus)
- Mountain Yellowseed (Gymnosiphon sphaerocarpus)
- Papua Yellowseed (Gymnosiphon papuanus)
- Puerto Rico Yellowseed (Gymnosiphon niveus)