Which genus of plant-life as a larger area of habitation, Centaurea or Commidendrum?
Centaurea:  Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. Commidendrum: Commidendrum is a genus of trees and shrubs in the sunflower family endemic to the island of Saint Helena in the South Atlantic Ocean.
i don't know