Adenoselen Spach (original description)
Ageratina Spach (original description)
Ageratina ageratoides (L.f.) Spach accepted as Ageratina altissima (L.) R.M.King & H.Rob. (original description)
Ageratina aromatica (L.) Spach (original description)
Ageratina cordata (Walter) Spach accepted as Ageratina aromatica (L.) Spach (original description)
Ayapana Spach (original description)
Ayapana officinalis Spach accepted as Ayapana triplinervis (Vahl) R.M.King & H.Rob. (original description)
Bellidiopsis (DC.) Spach (original description)
Cladoseris (Less.) Spach accepted as Onoseris Willd. (original description)
Glebionis coronaria (L.) Cass. ex Spach (original description)
Hochstettera Spach (original description)
Lestadia Spach accepted as Laestadia Kunth ex Less. (original description)
Matricarioides (Less.) Spach (original description)
Penthea (D.Don) Spach accepted as Barnadesia Mutis ex L.f. (original description)
Phoenicopus Spach (original description)
Piptostemma (D.Don) Spach (original description)
Rhigiothamnus (Less.) Spach (original description)
Trianthaea (DC.) Spach accepted as Oliganthes Cass. (original description)
Vanillosma (Less.) Spach (original description)