Absinthium candidum M.Bieb. ex DC. accepted as Artemisia austriaca Jacq. (original description)
Absinthium chinense (L.) Besser ex DC. accepted as Crossostephium chinense (A.Gray ex L.) Makino (original description)
Absinthium corymbosum (Lam.) DC. accepted as Artemisia alba Turra (original description)
Acanthotheca DC. accepted as Dimorphotheca Vaill. ex Moench (original description)
Acanthotheca dentata DC. accepted as Dimorphotheca sinuata DC. (original description)
Acanthotheca integrifolia DC. accepted as Dimorphotheca sinuata DC. (original description)
Acanthotheca pinnatisecta DC. accepted as Osteospermum pinnatum var. pinnatum (Thunb.) Norl. (original description)
Acarna rigida Godet ex DC. accepted as Jurinea longifolia DC. (original description)
Achillea bannatica Kit. ex DC. (original description)
Achillea conferta DC. (original description)
Achillea crispa Lam. ex DC. accepted as Achillea aspleniifolia Vent. (original description)
Achillea cristata Hort. ex DC. accepted as Achillea millefolium L. (original description)
Achillea eriophora DC. (original description)
Achillea fragilis Balb. ex DC. accepted as Achillea ptarmica L. (original description)
Achillea membranacea (Labill.) DC. (original description)
Achillea microloba DC. accepted as Achillea teretifolia Willd. (original description)
Achillea millefolium var. occidentalis DC. accepted as Achillea millefolium L. (original description)
Achillea montana Schleich. ex DC. (original description)
Achillea occidentalis Raf. ex DC. (original description)
Achillea oligocephala DC. (original description)
Achillea salicifolia Besser (original description)
Achillea sambucina Thouin ex DC. (original description)
Achillea szowitzii Fisch. & C.A.Mey. ex DC. accepted as Achillea latiloba Ledeb. ex Nordm. (original description)
Achillea tournefortii DC. accepted as Achillea aegyptiaca L. (original description)
Achillea vermiculata DC. accepted as Achillea vermicularis Trin. (original description)
Achillea virgata Hort. ex DC. accepted as Achillea millefolium L. (original description)
Achyrocline (Less.) DC. (original description)
Achyrocline alata (Kunth) DC. (original description)
Achyrocline bogotensis (Kunth) DC. (original description)
Achyrocline candicans (Kunth) DC. (original description)
Achyrocline celosioides (Kunth) DC. (original description)
Achyrocline flaccida (Weinm.) DC. (original description)
Achyrocline leptocephala DC. accepted as Helichrysum leptocephalum (DC.) Humbert (original description)
Achyrocline mathiolifolia DC. (original description)
Achyrocline pterocaula DC. accepted as Achyrocline alata (Kunth) DC. (original description)
Achyrocline rufescens (Kunth) DC. accepted as Achyrocline alata (Kunth) DC. (original description)
Achyrocline satureioides (Lam.) DC. (original description)
Achyrocline satureioides var. remotifolia DC. accepted as Achyrocline gardnerii (Baker) Deble & Marchiori (original description)
Achyrocline vargasiana DC. (original description)
Achyrocline vauthieriana DC. (original description)
Achyropappus Fisch. accepted as Tricholepis DC. (original description)
Acleia DC. accepted as Senecio L. (original description)
Acleia belbeysia DC. accepted as Senecio belbeysius Delile (original description)
Acroptilon picris (Pall. ex Willd.) DC. accepted as Rhaponticum repens (L.) Hidalgo (original description)
Adenachaena DC. accepted as Phymaspermum Less. (original description)
Adenachaena leptophylla DC. accepted as Phymaspermum leptophyllum (DC.) Benth. & Hook. ex B.D.Jacks. (original description)
Adenachaena parvifolia DC. accepted as Phymaspermum parvifolium (DC.) Benth. & Hook. ex B.D.Jacks. (original description)
Adenachaena pubescens DC. (original description)
Adenochaena DC. (original description)
Adenosolen DC. accepted as Marasmodes DC. (original description)
Adenosolen tenuifolius DC. (original description)
Aganippea Moc. & Sessé ex DC. accepted as Jaegeria Kunth (original description)
Aganippea bellidiflora Moc. & Sessé ex DC. accepted as Jaegeria bellidiflora (Moc. & Sessé ex DC.) A.M.Torres & Beaman (original description)
Aganippea dentata DC. (original description)
Amberboa carthamoides DC. accepted as Centaurea albonitens Turrill (original description)
Amberboa crupinoides DC. (original description)
Amberboa decurrens DC. accepted as Centaurea decurrens DC. (original description)
Amberboa erucifolia DC. (original description)
Amberboa goniocaulon DC. accepted as Centaurea sipylea Wagenitz (original description)
Amberboa incanescens DC. (original description)
Amberboa indica (Klein ex Willd.) DC. accepted as Goniocaulon indicum (Klein ex Willd.) Benth ex C.B.Clarke (original description)
Amberboa lancifolia DC. (original description)
Amberboa lippii DC. (original description)
Amberboa moschata (L.) DC. (original description)
Amberboa muricata (L.) DC. accepted as Volutaria muricata (L.) Maire (original description)
Amberboa odorata DC. (original description)
Amberboa phaeopappa DC. accepted as Centaurea aucheri subsp. szowitsii (Boiss.) Wagenitz (original description)
Amberboa sinaica DC. accepted as Volutaria sinaica (DC.) Wagenitz (original description)
Amberboa spectabilis DC. accepted as Centaurea spectabilis Sch.Bip. (original description)
Amberboa wallichiana DC. (original description)
Amberboa xanthocephala DC. accepted as Psephellus xanthocephalus (DC.) Fisch. & C.A.Mey. ex Boiss. (original description)
Amblyopogon (DC.) Fisch. & C.A.Mey. ex DC. accepted as Amberboa (Pers.) Less. (original description)
Amblyopogon incanescens Fisch. & mey ex DC. accepted as Centaurea incanescens (DC.) Sch.Bip. (original description)
Amphidoxa DC. accepted as Gnaphalium L. (original description)
Amphidoxa gnaphalodes DC. accepted as Gnaphalium gnaphalodes (DC.) Hilliard & B.L.Burtt (original description)
Amphiglossa DC. (original description)
Amphiglossa callunoides DC. (original description)
Amphiglossa corrudaefolia DC. (original description)
Amphiglossa nitidula DC. accepted as Amphiglossa tomentosa (Thunb.) Harv. (original description)
Amphiglossa perotrichoides DC. (original description)
Amphiglossa triflora DC. (original description)
Anacyclus pulcher Besser ex DC. accepted as Anacyclus pyrethrum (L.) Lag. (original description)
Anaphalis adnata Wall. ex DC. (original description)
Anaphalis araneosa DC. (original description)
Anaphalis brevifolia DC. (original description)
Anaphalis busua (Buch.-Ham.) DC. (original description)
Anaphalis chionantha DC. accepted as Anaphalis royleana DC. (original description)
Anaphalis elliptica (DC.) DC. accepted as Anaphalis subdecurrens (DC.) Gamble (original description)
Anaphalis javanica (Reinw. ex Blume) DC. accepted as Anaphalis javanica (DC.) Sch.Bip. (original description)
Anaphalis leptophylla (DC.) DC. (original description)
Anaphalis linearis DC. accepted as Anaphalis marcescens (Wight) C.B.Clarke (original description)
Anaphalis longifolia (Blume) Blume ex DC. (original description)
Anaphalis monocephala DC. accepted as Anaphalis nepalensis var. monocephala (DC.) Hand.-Mazz. (original description)
Anaphalis mucronata DC. accepted as Anaphalis nubigena DC. (original description)
Anaphalis neelgerryana (DC.) DC. (original description)
Anaphalis notoniana (DC.) DC. (original description)
Anaphalis nubigena DC. (original description)
Anaphalis oblonga DC. accepted as Anaphalis subdecurrens (DC.) Gamble (original description)
Anaphalis oligandra DC. accepted as Pseudognaphalium oligandrum (DC.) Hilliard & B.L.Burtt (original description)
Anaphalis polylepis DC. accepted as Anaphalis royleana DC. (original description)