Haplopappus croceus subsp. genuflexus (Greene) H.M.Hall accepted as Pyrrocoma crocea var. genuflexa (Greene) Mayes ex G.K.Br. & D.J.Keil (original description)
Haplopappus croceus subsp. typicus H.M.Hall accepted as Pyrrocoma crocea var. crocea (A.Gray) Greene (original description)
Haplopappus fremontii subsp. monocephalus (A.Nelson) H.M.Hall accepted as Oonopsis foliosa var. monocephala (A.Nelson) Kartesz & Gandhi (original description)
Haplopappus fremontii subsp. typicus H.M.Hall accepted as Oonopsis foliosa var. foliosa (A.Gray) Greene (original description)
Haplopappus fremontii subsp. wardii (A.Gray) H.M.Hall accepted as Oonopsis wardii (A.Gray) Greene (original description)
Haplopappus integrifolius subsp. scaberulus (Greene) H.M.Hall accepted as Pyrrocoma liatriformis Greene (original description)
Haplopappus integrifolius subsp. typicus H.M.Hall accepted as Pyrrocoma integrifolia (Porter ex A.Gray) Greene (original description)
Haplopappus lanceolatus subsp. solidagineus (Greene) H.M.Hall accepted as Pyrrocoma lanceolata var. lanceolata (Hook.) Greene (original description)
Haplopappus lanceolatus subsp. subviscosus (Greene) H.M.Hall accepted as Pyrrocoma lanceolata var. subviscosa (Greene) Mayes ex G.K.Br. & D.J.Keil (original description)
Haplopappus lanceolatus subsp. tenuicaulis (D.C.Eaton) H.M.Hall accepted as Pyrrocoma lanceolata var. lanceolata (Hook.) Greene (original description)
Haplopappus lanceolatus subsp. typicus H.M.Hall (original description)
Haplopappus lanuginosus subsp. andersonii (Rydb.) H.M.Hall accepted as Stenotus lanuginosus var. andersonii (Rydb.) H.M.Hall (original description)
Haplopappus macronema subsp. linearis (Rydb.) H.M.Hall accepted as Ericameria linearis (Rydb.) R.P.Roberts & Urbatsch (original description)
Haplopappus phyllocephalus subsp. annuus (Rydb.) H.M.Hall accepted as Rayjacksonia annua (Rydb.) R.L.Hartm. & M.A.Lane (original description)
Haplopappus phyllocephalus subsp. megacephalus (Nash) H.M.Hall accepted as Rayjacksonia phyllocephala (DC.) R.L.Hartm. & M.A.Lane (original description)
Haplopappus phyllocephalus var. typicus H.M.Hall (original description)
Haplopappus sect. Stenotopsis (Rydb.) H.M.Hall accepted as Ericameria Nutt. (original description)
Haplopappus spinulosus subsp. australis (Greene) H.M.Hall accepted as Xanthisma spinulosum (Pursh) D.R.Morgan & R.L.Hartm. (original description)
Haplopappus spinulosus subsp. cotulus (Small) H.M.Hall accepted as Xanthisma spinulosum var. spinulosum (Pursh) D.R.Morgan & R.L.Hartm. (original description)
Haplopappus spinulosus subsp. glaberrimus (Rydb.) H.M.Hall accepted as Xanthisma spinulosum var. glaberrimum D.R.Morgan & R.L.Hartm. (original description)
Haplopappus spinulosus subsp. gooddingii (A.Nelson) H.M.Hall accepted as Xanthisma spinulosum var. gooddingii (A.Nelson) D.R.Morgan & R.L.Hartm. (original description)
Haplopappus spinulosus subsp. incisifolius (I.M.Johnst.) H.M.Hall accepted as Machaeranthera incisifolia (I.M.Johnst.) G.L.Nesom (original description)
Haplopappus spinulosus subsp. laevis H.M.Hall accepted as Xanthisma spinulosum (Pursh) D.R.Morgan & R.L.Hartm. (original description)
Haplopappus spinulosus subsp. scabrellus (Greene) H.M.Hall accepted as Ericameria nauseosa var. ammophila L.C.Anderson (original description)
Haplopappus spinulosus subsp. typicus H.M.Hall (original description)
Homopappus racemosus subsp. duriusculus (Greene) H.M.Hall accepted as Pyrrocoma racemosa var. paniculata (Nutt.) Kartesz & Gandhi (original description)