Chuquiraga hassleriana Chodat accepted as Dasyphyllum varians (Gardner) Cabrera (original description)
Dissothrix hassleriana Chodat accepted as Stevia aristata D.Don ex Hook. & Arn. (original description)
Eupatorium conglobatum var. brunneo-tomentosum Huber accepted as Koanophyllon conglobatum (DC.) R.M.King & H.Rob. (original description)
Eupatorium palustre var. verbenaceum Chodat accepted as Barrosoa candolleana (Hook. & Arn.) R.M.King & H.Rob. (original description)
Eupatorium paraguariense var. integrifolia Chodat accepted as Chromolaena paraguariensis (Hieron.) R.M.King & H.Rob. (original description)
Mutisia speciosa var. elliptica Chodat accepted as Mutisia coccinea A.St.-Hil. (original description)
Spilanthes arnicoides f. grisea Chodat accepted as Acmella grisea (Chodat) R.K.Jansen (original description)
Trixis pallida var. subsericea Chodat accepted as Trixis pallida Less. (original description)
Vernonia glabrata f. oxyphylla Chodat (original description)
Vernonia imbricata var. imbricatissima Chodat (original description)
Vernonia nitidula var. intermedia Chodat accepted as Vernonanthura montevidensis (Spreng.) H.Rob. (original description)
Vernonia nivea Chodat accepted as Stenocephalum megapotamicum (Spreng.) Sch.Bip. (original description)
Vernonia virens f. robustior Chodat accepted as Chrysolaena platensis (Spreng.) H.Rob. (original description)
Wedelia brachycarpa Chodat (original description)