Proustia belongs to the Asteraceae family of flowering plants(Angiosperms), which bear their flowers in dense heads (capitula or pseudanthia) surrounded by involucral bracts.
Nearly all Asteraceae bear their flowers in dense heads (capitula or pseudanthia) surrounded by involucral bracts. Asteraceae or Compositae (commonly referred to as the aster, daisy, composite, or sunflower family), is a very large and widespread family of flowering plants (Angiospermae). Family: Asteraceae 
