Do both Tithonia and Pachysandra belong to the taxonomic category of genus?
Tithonia Tithonia is a genus of flowering plants in the sunflower tribe within the Asteraceae family.
Cabombaceae The Cabombaceae are a family of aquatic, herbaceous flowering plants. The family is recognised as distinct in the Angiosperm Phylogeny Group IV system (2016). The family consists of two genera of aquatic plants, "Brasenia" and "Cabomba", totalling six species.