- Included species (for The Plant List, ):
- P. sinense, P. spicatum
- Note: only species listed as 'Accepted'
- Included species (for Tropicos, ):
- P. begoniifolia, P. chinensis, P. corniculatum, P. gamopetalum, P. grandiflorum, P. honbaense, P. horsfieldii, P. lanuginosum, P. sinense, P. spicatum
- Note: list containing potentially synonyms
- Note: For APWebsite & GRIN & NCBI & Tropicos, this is currently the only extant (living) genus in the familia Pentaphragmataceae (Retrieved on ).