Aspilia hassleriana Chodat (original description)
Aspilia hassleriana var. scaberrima Chodat accepted as Aspilia hassleriana Chodat (original description)
Aspilia leucanthema Chodat (original description)
Baccharis articulata var. gaudichaudianum Chodat accepted as Baccharis articulata (Lam.) Pers. (original description)
Baccharis recurvata var. integrifolia Chodat accepted as Baccharis caprariifolia DC. (original description)
Bidens graveolens var. comosa Chodat accepted as Bidens chodatii Hassl. (original description)
Bidens riedelii var. hassleriana Chodat accepted as Bidens hassleriana (Chodat) A.A.Sáenz (original description)
Calea bakeriana var. dentata Chodat accepted as Calea bakeriana Chodat (original description)
Calea platylepis var. mollis Chodat accepted as Calea hassleriana Chodat (original description)
Calea platylepis var. scabra Chodat accepted as Calea mediterranea (Vell.) Pruski (original description)
Eupatorium alternifolium f. paraguariensis Chodat (original description)
Eupatorium caaguazuense var. crassifolium Chodat accepted as Chromolaena caaguazuensis (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium caaguazuense var. nervosum Chodat accepted as Chromolaena squarrulosa (Hook. & Arn.) R.M.King & H.Rob. (original description)
Eupatorium ivifolium var. foliosum Chodat accepted as Chromolaena squarroso-ramosa (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium oblongifolium var. paraguariensis Chodat (original description)
Eupatorium paraguariense var. angustifolia Chodat accepted as Chromolaena paraguariensis (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium paraguariense var. nervosum Chodat accepted as Chromolaena paraguariensis (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium pycnocephalum var. macrocephala Chodat (original description)
Eupatorium subhastatum var. lanuginosa Chodat accepted as Chromolaena hirsuta (Hook. & Arn.) R.M.King & H.Rob. (original description)
Eupatorium vitalbae var. serratifolium Chodat accepted as Heterocondylus vitalbae (DC.) R.M.King & H.Rob. (original description)
Porophyllum lineare f. latifolia Chodat (original description)
Porophyllum lineare var. corymbosum Chodat (original description)
Pterocaulon alopecuroides var. glabrescens Chodat accepted as Pterocaulon alopecuroides (Lam.) DC. (original description)
Pterocaulon alopecuroides var. mollis Chodat accepted as Pterocaulon rugosum (Vahl) Malme accepted as Pterocaulon spicatum var. brachystachyum DC. accepted as Pterocaulon rugosum (Vahl) Malme (original description)
Pterocaulon alopecuroides var. salicifolium Chodat accepted as Pterocaulon alopecuroides (Lam.) DC. (original description)
Pterocaulon subspicatum Malme (original description)
Stenachaenium megapotamicum var. pedunculata Chodat (original description)
Trixis ochroleuca f. minor Chodat (original description)
Vernonia asteriflora var. mollissima (D.Don ex Hook. & Arn.) Chodat accepted as Lessingianthus mollissimus (D.Don ex Hook. & Arn.) H.Rob. (original description)
Vernonia cichoriifolia Chodat (original description)
Vernonia cupularis var. oligocephala Chodat (original description)
Vernonia desertorum var. polycephala Chodat accepted as Chrysolaena lithospermifolia (Hieron.) H.Rob. (original description)
Vernonia glabrata var. lanata Chodat accepted as Lessingianthus niederleinii (Hieron.) H.Rob. (original description)
Vernonia glabrata var. linearifolia Chodat accepted as Lessingianthus polyphyllus (Sch.Bip. ex Baker) H.Rob. (original description)
Vernonia glabrata var. parvifolia Chodat accepted as Lessingianthus parvifolius (Chodat) H.Rob. (original description)
Vernonia glabrata var. puberula Chodat (original description)
Vernonia hexantha var. balansae Chodat (original description)
Vernonia hexantha var. eleagnoides Chodat (original description)
Vernonia hexantha var. paraguariensis Chodat (original description)
Wedelia subvelutina var. linearifolia Chodat accepted as Wedelia subvelutina DC. (original description)