Baccharis elliptica Gardner (original description)
Baccharis intermixta Gardner (original description)
Baccharis lychnophora Gardner (original description)
Baccharis polyphylla Gardner (original description)
Baccharis rivularis Gardner (original description)
Baccharis truncata Gardner (original description)
Blainvillea racemosa Gardner (original description)
Calea lantanoides Gardner (original description)
Calea reticulata Gardner (original description)
Echinocephalum Gardner (original description)
Echinocephalum latifolia Gardner (original description)
Enydra anagallis Gardner (original description)
Erechtites sulcatus Gardner (original description)
Ichthyothere latifolia (Benth.) Gardner (original description)
Lipochaeta goyazensis Gardner (original description)
Melampodium paniculatum Gardner (original description)
Oyedaea angustifolia Gardner (original description)
Porophyllum angustissimum Gardner (original description)
Riencourtia latifolia Gardner (original description)
Riencourtia oblongifolia Gardner (original description)
Riencourtia tenuifolia Gardner (original description)
Senecio dumetorum Gardner (original description)
Senecio grandis Gardner (original description)
Verbesina floribunda Gardner (original description)
Verbesina helianthoides Gardner (original description)
Viguiera humboldtiana Gardner (original description)
Viguiera kunthiana Gardner (original description)
Viguiera nervosa Gardner (original description)
Viguiera robusta Gardner (original description)
Wedelia goyazensis Gardner (original description)
Wedelia hookeriana Gardner (original description)
Wedelia pallida Gardner (original description)
Wedelia villosa Gardner (original description)