Baccharis hemiprionodes H.Buek accepted as Baccharis gnidiifolia Kunth (original description)
Centaurea russeliana H.Buek (original description)
Cirsium candolleanum H.Buek accepted as Cirsium polycephalum DC. (original description)
Eupatorium pinnatifissum H.Buek accepted as Acanthostyles buniifolius (Hook. & Arn.) R.M.King & H.Rob. (original description)
Helichrysum barbellatum H.Buek (original description)
Helichrysum candolleanum H.Buek (original description)
Hieracium froelichianum H.Buek (original description)
Senecio andinus H.Buek (original description)
Senecio megapotamicus H.Buek accepted as Senecio brasiliensis (Spreng.) Less. (original description)
Senecio morettii H.Buek (original description)
Senecio pilquensis H.Buek (original description)
Senecio swartzianus H.Buek (original description)
Vernonia cuspidata H.Buek (original description)