Which genus has more known species, Epipactis or Coriaria?
Epipactis: Epipactis, or Helleborine, is a genus of terrestrial orchids consisting of approximately 70 species. Coriaria:  It includes 14 species of subshrubs, shrubs and small trees, with a widespread but disjunct distribution across warm temperate regions of the world, occurring as far apart as the Mediterranean region, southern and eastern Asia, New Zealand (where some are alpine species), the Pacific Ocean islands, and Central and South America.
i don't know