Artemisia campestris subsp. borealis (Pall.) H.M.Hall & Clem. accepted as Artemisia campestris subsp. borealis var. borealis (Pall.) M.Peck (original description)
Artemisia campestris subsp. caudata (Michx.) H.M.Hall & Clem. accepted as Artemisia campestris L. (original description)
Artemisia campestris subsp. pacifica (Nutt.) H.M.Hall & Clem. accepted as Artemisia campestris var. pacifica (Nutt.) M.Peck (original description)
Artemisia campestris subsp. spithamaea (Pursh) H.M.Hall & Clem. accepted as Artemisia borealis subsp. borealis (original description)
Artemisia dracunculus subsp. dracunculina (S.Watson) H.M.Hall & Clem. accepted as Artemisia dracunculus L. (original description)
Artemisia dracunculus subsp. glauca (Pall. ex Willd.) h.m.hall. ex H.M.Hall & Clem. accepted as Artemisia dracunculus L. (original description)
Artemisia dracunculus subsp. typica H.M.Hall & Clem. accepted as Artemisia dracunculus L. (original description)
Artemisia norvegica subsp. globularia (Cham. ex Besser) H.M.Hall & Clem. accepted as Artemisia globularia Cham. ex Besser (original description)
Artemisia norvegica subsp. glomerata (Ledeb.) H.M.Hall & Clem. accepted as Artemisia glomerata Ledeb. (original description)
Artemisia norvegica subsp. heterophylla (Besser) H.M.Hall & Clem. accepted as Artemisia furcata M.Bieb. (original description)
Artemisia norvegica subsp. saxatilis (Besser) H.M.Hall & Clem. (original description)
Artemisia tridentata subsp. arbuscula (Nutt.) H.M.Hall & Clem. accepted as Artemisia arbuscula Nutt. (original description)
Artemisia tridentata subsp. bolanderi (A.Gray) H.M.Hall & Clem. accepted as Artemisia cana subsp. bolanderi (A.Gray) G.H.Ward (original description)
Artemisia tridentata subsp. nova (A.Nelson) H.M.Hall & Clem. accepted as Artemisia nova A.Nelson (original description)
Artemisia tridentata subsp. parishii (A.Gray) H.M.Hall & Clem. (original description)
Artemisia tridentata subsp. rothrockii (A.Gray) H.M.Hall & Clem. accepted as Artemisia rothrockii A.Gray (original description)
Artemisia tridentata subsp. trifida (Nutt.) H.M.Hall & Clem. accepted as Artemisia tripartita subsp. tripartita Rydb. (original description)
Artemisia tridentata subsp. typica H.M.Hall & Clem. accepted as Artemisia tridentata subsp. tridentata Nutt. (original description)
Artemisia vulgaris subsp. gnaphalodes (Nutt.) H.M.Hall & Clem. accepted as Artemisia ludoviciana subsp. ludoviciana Nutt. (original description)
Artemisia vulgaris subsp. lindleyana H.M.Hall & Clem. (original description)
Artemisia vulgaris subsp. ludoviciana (Nutt.) H.M.Hall & Clem. accepted as Artemisia ludoviciana subsp. ludoviciana Nutt. (original description)
Artemisia vulgaris subsp. tilesi H.M.Hall & Clem. (original description)
Artemisia vulgaris subsp. typica H.M.Hall & Clem. (original description)
Chrysothamnus greenei subsp. filifolius (Rydb.) H.M.Hall & Clem. accepted as Chrysothamnus greenei (A.Gray) Greene (original description)
Chrysothamnus greenei subsp. typicus H.M.Hall & Clem. accepted as Chrysothamnus greenei (A.Gray) Greene (original description)
Chrysothamnus nauseosus subsp. albicaulis (Nutt.) H.M.Hall & Clem. accepted as Ericameria nauseosa var. speciosa (Nutt.) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. ceruminosus (Durand & Hilg.) H.M.Hall & Clem. accepted as Ericameria nauseosa var. ceruminosa (Durand & Hilg.) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. consimilis (Greene) H.M.Hall & Clem. accepted as Ericameria nauseosa var. oreophila (A.Nelson) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. gnaphalodes (Greene) H.M.Hall & Clem. accepted as Ericameria nauseosa var. hololeuca (A.Gray) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. occidentalis (Greene) H.M.Hall & Clem. accepted as Ericameria nauseosa var. speciosa (Nutt.) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. pinifolius (Greene) H.M.Hall & Clem. accepted as Ericameria nauseosa var. oreophila (A.Nelson) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus nauseosus subsp. typicus H.M.Hall & Clem. accepted as Ericameria nauseosa subsp. nauseosa var. nauseosa (Pall. ex Pursh) G.L.Nesom & Baird (original description)
Chrysothamnus nauseosus subsp. viridulus (H.M.Hall) H.M.Hall & Clem. accepted as Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus parryi subsp. monocephalus (A.Nelson & P.B.Kenn.) H.M.Hall & Clem. accepted as Ericameria parryi var. monocephala (A.Nelson & P.B.Kenn.) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus parryi subsp. typicus H.M.Hall & Clem. accepted as Chrysothamnus parryi (A.Gray) Greene (original description)
Chrysothamnus pulchellus subsp. baileyi (Wooton & Standl.) H.M.Hall & Clem. accepted as Lorandersonia baileyi (Wooton & Standl.) Urbatsch, R.P.Roberts & Neubig (original description)
Chrysothamnus pulchellus subsp. elatior (Standl.) H.M.Hall & Clem. accepted as Lorandersonia pulchella (A.Gray) Urbatsch, R.P.Roberts & Neubig (original description)
Chrysothamnus pulchellus subsp. typicus H.M.Hall & Clem. accepted as Lorandersonia pulchella (A.Gray) Urbatsch, R.P.Roberts & Neubig (original description)
Chrysothamnus viscidiflorus subsp. elegans (Greene) H.M.Hall & Clem. accepted as Chrysothamnus viscidiflorus subsp. lanceolatus (Nutt.) H.M.Hall & Clem. (original description)
Chrysothamnus viscidiflorus subsp. humilis (Greene) H.M.Hall & Clem. accepted as Chrysothamnus humilis Greene (original description)
Chrysothamnus viscidiflorus subsp. lanceolatus (Nutt.) H.M.Hall & Clem. (original description)
Chrysothamnus viscidiflorus subsp. latifolius (D.C.Eaton) H.M.Hall & Clem. accepted as Chrysothamnus viscidiflorus subsp. viscidiflorus (Hook.) Nutt. (original description)
Chrysothamnus viscidiflorus subsp. linifolius (Greene) H.M.Hall & Clem. accepted as Lorandersonia linifolia (Greene) Urbatsch, R.P.Roberts & Neubig (original description)
Chrysothamnus viscidiflorus subsp. puberulus (D.C.Eaton) H.M.Hall & Clem. (original description)
Chrysothamnus viscidiflorus subsp. pumilus (Nutt.) H.M.Hall & Clem. accepted as Chrysothamnus viscidiflorus subsp. viscidiflorus (Hook.) Nutt. (original description)
Chrysothamnus viscidiflorus subsp. stenophyllus (A.Gray) H.M.Hall & Clem. accepted as Chrysothamnus viscidiflorus subsp. viscidiflorus (Hook.) Nutt. (original description)
Chrysothamnus viscidiflorus subsp. typicus H.M.Hall & Clem. accepted as Chrysothamnus viscidiflorus subsp. viscidiflorus (Hook.) Nutt. (original description)