Pachythamnus

Pachythamnus is a genus of Mesoamerican flowering plants in the tribe Eupatorieae within the family Asteraceae.^[2][4]

Species

The only known species is Pachythamnus crassirameus, native to Guatemala, Nicaragua, El Salvador, and central and southern Mexico.^[1]

Etymology

Ageratina is derived from Greek meaning 'un-aging', in reference to the flowers keeping their color for a long time. This name was used by Dioscorides for a number of different plants.^[5]

References