Absinthium grandiflorum Roehl. ex Steud. (original description)
Absinthium mutellina Roehl. ex Steud. accepted as Artemisia umbelliformis Lam. (original description)
Achillea abrotanifolia Hort. ex Steud. (original description)
Achillea aegyptiaca Hort. ex Steud. (original description)
Achillea crassifolia Hort. ex Steud. (original description)
Achillea dracunculus Hort. ex Steud. accepted as Artemisia dracunculus L. (original description)
Achillea dubia Fisch. ex Steud. (original description)
Achillea flava Hort. ex Steud. (original description)
Achillea linearis Steud. accepted as Achillea ptarmica L. (original description)
Achillea mucronata Hort. ex Steud. accepted as Achillea heterophylla Spreng. (original description)
Achillea partheniifolia Desf. ex Steud. (original description)
Achillea rubra Hildebr. ex Steud. accepted as Achillea distans subsp. tanacetifolia (All.) Janch. (original description)
Achyropappus ambiguus Steud. (original description)
Achyrophorus glabrescens Steud. accepted as Hypochaeris arenaria Gaudich. (original description)
Acrolophus ragusinus Webb ex Steud. accepted as Centaurea argentea L. (original description)
Actinomeris procera Steud. (original description)
Adenochaena Steud. (original description)
Adenophyllum cavanillesii Steud. accepted as Adenophyllum glandulosum (Cav.) Strother (original description)
Aegoseris (Rchb.) Steud. accepted as Crepis L. (original description)
Agalma Steud. (original description)
Ageratum conyzoides Sieber ex Steud. (original description)
Ageratum paniculatum Hort. ex Steud. accepted as Brickellia paniculata (Mill.) B.L.Rob. (original description)
Agoseris cuspidata (Pursh) Steud. accepted as Nothocalais cuspidata (Pursh) Greene (original description)
Agoseris glaucus Steud. (original description)
Amblyopelis Steud. (original description)
Amellus lychnitis E.Mey. ex Steud. accepted as Amellus tenuifolius Burm.f. (original description)
Ampherephis pilosa Cass. ex Steud. accepted as Centratherum punctatum Cass. (original description)
Ampherephis pulchella Cass. ex Steud. accepted as Centratherum punctatum Cass. (original description)
Anacyclus inflatus Lehm. ex Steud. (original description)
Anacyclus mucronulatus Hort. ex Steud. accepted as Anacyclus clavatus (Desf.) Pers. (original description)
Andromachia alternifolia Kunze ex Steud. accepted as Haplopappus chrysanthemifolius (Less.) DC. (original description)
Andryala cheiranthifolia Link ex Steud. accepted as Andryala pinnatifida Aiton (original description)
Anthemis anemonifolia Boj. ex Steud. accepted as Anisopappus anemonifolius (DC.) G.Taylor (original description)
Anthemis crassifolia Humb. ex Steud. accepted as Iva cheiranthifolia Kunth (original description)
Anthemis hondensis Willd. ex Steud. accepted as Wedelia acapulcensis Kunth (original description)
Anthemis minuta Lehm. ex Steud. (original description)
Anthemis mucronulata Hort. ex Steud. accepted as Anacyclus clavatus (Desf.) Pers. (original description)
Anthemis rupestris Boj. ex Steud. accepted as Anisopappus chinensis var. dentatus (DC.) S.Ortiz, Paiva & Rodr.Oubiña (original description)
Anthemis suaveolens Schwägr. ex Steud. (original description)
Apargia brumati Schied. ex Steud. (original description)
Apargia haenkei Sternb. ex Steud. accepted as Scorzoneroides crocea (Haenke) Holub (original description)
Apargia hirta Geners. ex Steud. accepted as Leontodon hispidus L. (original description)
Apargia intermedia Schult. ex Steud. accepted as Leontodon hispidus subsp. hastilis (L.) Corb. accepted as Leontodon hispidus subsp. hastilis (L.) Pawłowska (original description)
Apargia scabra Nocca ex Steud. accepted as Picris asplenioides L. (original description)
Apargia serotina Jan ex Steud. accepted as Hypochaeris radicata L. (original description)
Arctium montanum Schweigg. ex Steud. accepted as Arctium minus (Hill) Bernh. (original description)
Arctotheca hirta Schrad. ex Steud. accepted as Arctotheca prostrata (Salisb.) Britten (original description)
Arctotis abrotanifolia Steud. accepted as Ursinia abrotanifolia (R.Br.) Spreng. (original description)
Arctotis cuprea Hort. ex Steud. accepted as Arctotis aenea J.Jacq. (original description)
Arctotis odorata Steud. accepted as Ursinia odorata Spreng. (original description)
Arctotis purpurea willd.enum. ex Steud. (original description)
Arnoldia chrysanthemifolia (Vent.) Steud. accepted as Dimorphotheca chrysanthemifolia (Vent.) DC. (original description)
Arnoldia tragus (Aiton) Steud. (original description)
Arnoldia viscosa (Andrews) Steud. accepted as Dimorphotheca cuneata (Thunb.) DC. (original description)
Artemisia affinis (Less.) Steud. accepted as Artemisia pubescens Ledeb. (original description)
Artemisia alpina DC. ex Steud. accepted as Artemisia campestris subsp. alpina (DC.) Arcang. (original description)
Artemisia anthriscifolia Presl ex Steud. (original description)
Artemisia apetala hort.pest. ex Steud. accepted as Artemisia indica Willd. (original description)
Artemisia campestris Scop. ex Steud. accepted as Artemisia gallica Schur accepted as Artemisia maritima Pourr. ex Willk. & Lange accepted as Artemisia gallica Schur (original description)
Artemisia grata B.Heyne ex Steud. (original description)
Artemisia subulata Willd. ex Steud. accepted as Artemisia campestris subsp. inodora Nyman (original description)
Astelma retartum D.Don ex Steud. (original description)
Aster bellidiflorus Steud. accepted as Eurybia spectabilis (Sol. ex Aiton) G.L.Nesom (original description)
Aster caryophyllus Steud. accepted as Olearia argophylla (Labill.) F.Muell. ex Benth. (original description)
Aster chrysanthemifolius Hort. ex Steud. accepted as Felicia filifolia (Vent.) Burtt Davy (original description)
Aster chrysocomifolius Hort. ex Steud. accepted as Nolletia chrysocomoides (Desf.) Cass. (original description)
Aster elatus Bertero ex Steud. accepted as Eurybia divaricata (L.) G.L.Nesom (original description)
Aster filiformis Steud. accepted as Felicia muricata (Thunb.) Nees (original description)
Aster latifolius Banks ex Steud. accepted as Oclemena acuminata (Michx.) Greene (original description)
Aster ornatus Hort.Angl. ex Steud. accepted as Eurybia ×herveyi (A.Gray) G.L.Nesom (original description)
Aster sessilifolius Fisch. ex Steud. (original description)
Aster spathulatus Hort. ex Steud. (original description)
Aster squarrosus Banks ex Steud. (original description)
Aster subulatus Hort. ex Steud. (original description)
Aster unctuosus Steud. (original description)
Aster versicolor Hort. ex Steud. (original description)
Atractylis triplinervia Vahl ex Steud. accepted as Lycoseris triplinervia Less. (original description)
Aurelia squarrosa Cass. ex Steud. accepted as Grindelia squarrosa (Pursh) Dunal (original description)
Baccharis candolleana Steud. accepted as Nothobaccharis candolleana (Steud.) R.M.King & H.Rob. (original description)
Baccharis cuneifolia Wendl. ex Steud. accepted as Baccharis magellanica (Lam.) Pers. (original description)
Baccharis sternbergiana Steud. accepted as Baccharis gnidiifolia Kunth (original description)
Baccharis tomentosa Steud. accepted as Moquiniastrum polymorphum (Less.) G. Sancho (original description)
Baccharis wendlandii Steud. (original description)
Barkhausia amygdalina Lag. ex Steud. (original description)
Barkhausia raphanifolia Chev. ex Steud. (original description)
Barkhausia sprengelii Steud. (original description)
Bastia Steud. (original description)
Baziasa Steud. accepted as Sabazia Cass. (original description)
Baziasa humilis Steud. accepted as Sabazia humilis (Kunth) Cass. (original description)
Baziasa microglossa Steud. accepted as Galinsoga parviflora Cav. (original description)
Baziasa sarmentosa (Less.) Steud. accepted as Sabazia sarmentosa Less. (original description)
Baziasa urticifolia (Kunth) Steud. accepted as Galinsoga quadriradiata Ruiz & Pav. (original description)
Bellis americana Mirb. ex Steud. accepted as Astranthium integrifolium (Michx.) Nutt. (original description)
Bichenia berteroana Steud. accepted as Trichocline aurea (D.Don) Reiche (original description)
Bidens coronata Fisch. ex Steud. accepted as Coreopsis nuecensis A.Heller (original description)
Bidens decussata Pav. ex Steud. accepted as Bidens pilosa L. (original description)
Bidens nivea Sw. ex Steud. (original description)
Bidens nudiflora Steud. accepted as Bidens nodiflora L. (original description)
Bidens oleracea (L.) Cav. ex Steud. accepted as Acmella oleracea (L.) R.K.Jansen (original description)
Bidens perianthomega Steud. (original description)