Acanthotheca pinnatisecta var. escholtzioides DC. (original description)
Acanthotheca pinnatisecta var. obtusiloba DC. (original description)
Achillea sect. Millefoliatae DC. (original description)
Anaphalis arenosa DC. accepted as Anaphalis busua (Buch.-Ham.) DC. (original description)
Anaphalis mucronata var. monocephala DC. accepted as Anaphalis nepalensis var. monocephala (DC.) Hand.-Mazz. (original description)
Anaphalis mucronata var. polycephala DC. accepted as Anaphalis nepalensis var. nepalensis (original description)
Antennaria margaritacea (L.) R.Br. ex DC. accepted as Anaphalis margaritacea (L.) Benth. & Hook.f. (original description)
Antennaria tenella DC. accepted as Anaphalis contorta var. contorta (original description)
Anthemis arvensis var. agrestis (Wallr.) DC. accepted as Anthemis arvensis L. (original description)
Aplotaxis DC. accepted as Saussurea DC. (original description)
Aplotaxis denticulata var. glabrata DC. accepted as Saussurea glabrata (DC.) C.Shih (original description)
Aplotaxis denticulata var. hypoleuca DC. accepted as Saussurea fastuosa (Decne.) Sch.Bip. (original description)
Aplotaxis gossypina var. minor DC. accepted as Saussurea simpsoniana (Fielding & Gardner) Lipsch. (original description)
Aplotaxis sect. Frolovia DC. (original description)
Arctotis bellidifolia var. incisa DC. (original description)
Arctotis bellidifolia var. integrifolia DC. (original description)
Arctotis leptorhiza var. breviscapa (Thunb.) DC. accepted as Arctotis leptorhiza DC. (original description)
Arctotis leptorhiza var. longiscapa DC. (original description)
Artemisia anethifolia var. erectiflora A.DC. (original description)
Artemisia anethifolia var. stelleriana (Besser) A.DC. (original description)
Artemisia austriaca var. orientalis Fisch. ex DC. (original description)
Artemisia candidum M.Bieb. ex DC. (original description)
Artemisia desertorum var. jacquemontiana (Besser) DC. (original description)
Artemisia foetida DC. (original description)
Artemisia lercheana var. gmeliniana DC. (original description)
Artemisia lercheana var. humilis DC. (original description)
Artemisia leucanthemifolia Desf. (original description)
Artemisia rupestris var. viridis (Besser) A.DC. (original description)
Artemisia sericea var. grandiflora DC. (original description)
Artemisia sericea var. nitens (Steven ex Besser) A.DC. accepted as Artemisia sericea Weber ex Stechm. (original description)
Artemisia sericea var. parviflora A.DC. (original description)
Artemisia tilesii DC. (original description)
Artemisia umbrosa (Turcz. ex Besser) Turcz. ex A.DC. (original description)
Artemisia viridis Willd. ex A.DC. (original description)
Berkheya grandiflora var. angustifolia DC. (original description)
Berkheya grandiflora var. spinosissima DC. (original description)
Berkheya grandiflora var. verticillata DC. (original description)
Cacalia sect. Conophora DC. (original description)
Cacalia sinuata Sessé & Moc. ex DC. accepted as Psacalium sinuatum (Cerv.) H.Rob. & Brettell (original description)
Carduus altaicus Patrin ex DC. accepted as Serratula marginata Tausch (original description)
Carduus uniflorus Turcz. ex DC. accepted as Serratula marginata Tausch (original description)
Centaurea pulchella var. viminea (Less.) DC. accepted as Centaurea pulchella Ledeb. (original description)
Centaurea scabiosa var. adpressa (Ledeb.) DC. accepted as Centaurea scabiosa subsp. adpressa (Ledeb.) Gugler (original description)
Cineraria tillandsiaefolia Poepp. (original description)
Cineraria verticillata Mairet (original description)
Cirsium acaule var. gmelinii (Spreng.) DC. accepted as Cirsium esculentum (Siev.) C.A.Mey. (original description)
Cnicus aranosus Desf. ex A.DC. (original description)
Conyza incisa var. stipulacea (Cass.) DC. accepted as Conyza ulmifolia (Burm.f.) Kuntze (original description)
Echinops dahuricus var. angustilobus DC. accepted as Echinops latifolius Tausch (original description)
Echinops dahuricus var. latilobus DC. accepted as Echinops latifolius Tausch (original description)
Eclopes apiculata var. pubescens DC. (original description)
Eclopes parallelinervis var. angustifolia DC. accepted as Relhania pungens subsp. angustifolia (DC.) K.Bremer (original description)
Ethulia conyzoides var. africana DC. (original description)
Ethulia conyzoides var. indica DC. (original description)
Euryops multifidus var. longifolius DC. (original description)
Euryops pectinatus var. discoideus DC. accepted as Euryops pectinatus subsp. pectinatus (L.) Cass. (original description)
Euryops subcarnosus var. indivisus DC. accepted as Euryops subcarnosus subsp. subcarnosus DC. (original description)
Filago arvensis var. lagopus (Stephan ex Willd.) DC. accepted as Filago arvensis L. (original description)
Filago germanica var. spathulata (J.Presl) DC. accepted as Filago pyramidata L. (original description)
Galactites tomentosa var. elegans (All.) DC. accepted as Galactites tomentosa Moench (original description)
Gazania ciliaris var. epitrachys DC. (original description)
Gnaphalium javanicum DC. accepted as Laphangium affine (D.Don) Tzvelev (original description)
Gnaphalium repens var. vestitum (Thunb.) DC. accepted as Gnaphalium vestitum Thunb. (original description)
Gnaphalium sylvaticum var. rectum DC. accepted as Gnaphalium sylvaticum L. (original description)
Helichrysum anomalum var. brevifolium DC. (original description)
Helichrysum anomalum var. rufescens DC. (original description)
Helichrysum burchellii var. complicatum DC. (original description)
Helichrysum cirrhosum DC. accepted as Helichrysum mutisiaefolium Less. (original description)
Helichrysum luzulaefolium DC. (original description)
Helichrysum phylicaefolium DC. (original description)
Helichrysum serpyllifolium var. orbiculare (Thunb.) DC. accepted as Plecostachys serpyllifolia (P.J.Bergius) Hilliard & B.L.Burtt (original description)
Helipterum canescens var. vulneratum (Schrank) DC. (original description)
Leysera capillifolia (Willd.) DC. accepted as Leysera leyseroides (Desf.) Maire (original description)
Ligularia arnicoides var. glabra DC. accepted as Cremanthodium oblongatum C.B.Clarke (original description)
Matricaria glabrata (Thunb.) DC. accepted as Oncosiphon africanum (P.J.Bergius) Källersjö (original description)
Matricaria hirta (Thunb.) DC. accepted as Oncosiphon africanum (P.J.Bergius) Källersjö (original description)
Metalasia aristata DC. accepted as Metalasia densa (Lam.) P.O.Karis (original description)
Metalasia aristata var. candicans DC. (original description)
Metalasia aristata var. gracilis DC. (original description)
Metalasia aristata var. myriocephala DC. (original description)
Metalasia aurea var. confertissima DC. (original description)
Metalasia muricata var. canescens DC. (original description)
Metalasia muricata var. conferta DC. (original description)
Metalasia muricata var. exilis DC. (original description)
Metalasia muricata var. subpaniculata DC. (original description)
Onobroma DC. accepted as Carduncellus Adans. (original description)
Osteospermum coriaceum var. asperulum DC. accepted as Osteospermum asperulum (DC.) Norl. (original description)
Osteospermum corymbosum DC. accepted as Osteospermum imbricatum subsp. imbricatum L. (original description)
Osteospermum corymbosum var. lasiocaulon DC. accepted as Osteospermum imbricatum subsp. imbricatum L. (original description)
Osteospermum corymbosum var. rotundifolium DC. accepted as Osteospermum rotundifolium (DC.) Norl. (original description)
Osteospermum laxum var. auriculatum DC. (original description)
Osteospermum moniliferum var. angustifolium DC. accepted as Chrysanthemoides monilifera subsp. subcanescens (DC.) Norl. (original description)
Osteospermum moniliferum var. lanosum DC. accepted as Chrysanthemoides incana (Burm.f.) Norl. (original description)
Osteospermum pterospermum var. umbelliforme E.Mey. ex DC. (original description)
Osteospermum tridens var. demissum DC. (original description)
Prenanthes brunoniana Wall. ex DC. accepted as Lactuca brunoniana (DC.) Wall. ex C.B.Clarke (original description)
Saussurea acuminata Turcz. ex DC. (original description)
Saussurea discolor var. elatior DC. (original description)
Saussurea elongata var. polypodifolia DC. (original description)
Senecio argenteus Kuntze (original description)