Which genus has more species, Calycanthus or Wikstroemia?
Calycanthus Calycanthus (sweetshrub) is a genus of flowering plants in the family Calycanthaceae, endemic to North America. The genus includes two to four species depending on taxonomic interpretation; two are accepted by the "Flora of North America".
Calagrassor Calagrassor is a genus of sea snails, marine gastropod mollusks in the family Buccinidae, the true whelks.