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.
Tithonia rotundifolia The red sunflower or Mexican sunflower (Tithonia rotundifolia ) is a plant in the Asteraceae family, which is native to the warmer and moister parts of North America.