Achillea subalpina Greene accepted as Achillea millefolium L. (original description)
Antennaria anacleta Greene (original description)
Antennaria formosa Greene accepted as Antennaria rosea subsp. rosea Greene (original description)
Antennaria latisquamea Greene accepted as Antennaria parvifolia Nutt. (original description)
Aster copelandii Greene (original description)
Aster griseus Greene accepted as Symphyotrichum ascendens (Lindl.) G.L.Nesom (original description)
Aster lonchophyllus Greene accepted as Symphyotrichum ascendens (Lindl.) G.L.Nesom (original description)
Aster orthophyllus Greene (original description)
Aster wootonii (Greene) Greene accepted as Symphyotrichum lanceolatum (Willd.) G.L.Nesom (original description)
Bidens cognata Greene accepted as Bidens tenuisecta A.Gray (original description)
Bidens tenuissima Greene accepted as Bidens discoidea (Torr. & A.Gray) Britton (original description)
Brachyactis hybrida Greene (original description)
Chaptalia alsophila Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia carduacea Greene accepted as Chaptalia texana Greene (original description)
Chaptalia confinis Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia crispula Greene accepted as Chaptalia albicans (Sw.) Vent. ex B.D.Jacks. (original description)
Chaptalia diversifolia Greene accepted as Chaptalia nutans (L.) Polák (original description)
Chaptalia erosa Greene accepted as Chaptalia nutans (L.) Polák (original description)
Chaptalia fallax Greene accepted as Chaptalia albicans (Sw.) Vent. ex B.D.Jacks. (original description)
Chaptalia hololeuca Greene (original description)
Chaptalia leonina Greene accepted as Chaptalia texana Greene (original description)
Chaptalia leucocephala Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia majuscula Greene accepted as Chaptalia nutans (L.) Polák (original description)
Chaptalia microdonta Greene accepted as Chaptalia integerrima (Vell.) Burkart (original description)
Chaptalia monticola Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia petrophila Greene accepted as Chaptalia texana Greene (original description)
Chaptalia potosina Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia primulacea Greene accepted as Chaptalia dentata (L.) Cass. (original description)
Chaptalia pringlei Greene (original description)
Chaptalia sonchifolia Greene accepted as Leibnitzia lyrata (Sch.Bip.) G.L.Nesom (original description)
Chaptalia subcordata Greene accepted as Chaptalia nutans (L.) Polák (original description)
Chaptalia texana Greene (original description)
Chrysopsis asprella Greene accepted as Heterotheca villosa var. minor (Hook.) Semple (original description)
Chrysopsis compacta Greene accepted as Heterotheca villosa var. minor (Hook.) Semple (original description)
Chrysothamnus asper Greene accepted as Ericameria parryi var. aspera (Greene) G.L.Nesom & G.I.Baird (original description)
Chrysothamnus vulcanicus Greene accepted as Ericameria parryi var. vulcanica (Greene) G.L.Nesom & G.I.Baird (original description)
Coleosanthus melissifolius Greene (original description)
Erigeron deustus Greene accepted as Lachnophyllum noeanum Boiss. (original description)
Erigeron platyphyllus Greene (original description)
Erigeron tephrodes Greene accepted as Erigeron tracyi Greene (original description)
Euthamia hirtella Greene accepted as Euthamia lanceolata (L.) G.L. Nesom (original description)
Helianthella majuscula Greene (original description)
Hesperodoria Greene accepted as Chrysothamnus Nutt. (original description)
Hesperodoria hallii (A.Gray) Greene accepted as Columbiadoria hallii (A.Gray) G.L.Nesom (original description)
Hesperodoria scopulorum (M.E.Jones) Greene accepted as Chrysothamnus scopulorum (M.E.Jones) Urbatsch, R.P.Roberts & Neubig (original description)
Isocoma bracteosa Greene accepted as Isocoma acradenia var. bracteosa (Greene) G.L.Nesom (original description)
Isocoma decumbens Greene accepted as Isocoma menziesii var. decumbens (Greene) G.L.Nesom (original description)
Isocoma eremophila Greene accepted as Isocoma acradenia var. eremophila (Greene) G.L.Nesom (original description)
Isocoma latifolia Greene accepted as Isocoma menziesii var. vernonioides (Nutt.) G.L.Nesom (original description)
Isocoma leucanthemifolia Greene accepted as Isocoma menziesii var. vernonioides (Nutt.) G.L.Nesom (original description)
Isocoma microdonta Greene accepted as Isocoma menziesii var. vernonioides (Nutt.) G.L.Nesom (original description)
Isocoma oxyphylla Greene accepted as Isocoma menziesii var. menziesii (Hook. & Arn.) G.L.Nesom (original description)
Isocoma pedicellata Greene accepted as Isocoma coronopifolia (A.Gray) Greene (original description)
Isocoma rusbyi Greene (original description)
Isocoma sedoides (Greene) Greene accepted as Isocoma menziesii var. sedoides (Greene) G.L.Nesom (original description)
Isocoma tenuisecta Greene (original description)
Isocoma villosa Greene accepted as Isocoma menziesii var. vernonioides (Nutt.) G.L.Nesom (original description)
Kyrstenia aborginum (Greene) Greene (original description)
Kyrstenia aboriginum (Greene) Greene accepted as Ageratina altissima (L.) R.M.King & H.Rob. (original description)
Kyrstenia altissima (L.) Greene accepted as Ageratina altissima (L.) R.M.King & H.Rob. (original description)
Kyrstenia angustata (A.Gray) Greene accepted as Ageratina altissima var. altissima (L.) R.M.King & H.Rob. (original description)
Kyrstenia arizonica (A.Gray) Greene accepted as Ageratina herbacea (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia aromatica (L.) Greene accepted as Ageratina aromatica (L.) Spach (original description)
Kyrstenia bellidifolia Greene (original description)
Kyrstenia benthamii Greene (original description)
Kyrstenia betulifolia Greene accepted as Ageratina herbacea (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia brevipes Greene (original description)
Kyrstenia calaminthifolia (Kunth) Greene accepted as Ageratina calaminthaefolia (Kunth) R.M.King & H.Rob. (original description)
Kyrstenia calaminthifolia Greene (original description)
Kyrstenia calophylla Greene accepted as Ageratina calophylla (B.L.Rob.) R.M.King & H.Rob. (original description)
Kyrstenia ceanothifolia (Muhlenb.Willd.) Greene accepted as Ageratina aromatica (L.) Spach (original description)
Kyrstenia coahuilensis (A.Gray) Greene accepted as Phanerostylis coahuilensis (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia collina Greene (original description)
Kyrstenia deltoidea Greene (original description)
Kyrstenia espinosarum Greene (original description)
Kyrstenia euonymifolia (Greene) Greene (original description)
Kyrstenia euonymyfolia (Greene) Greene accepted as Ageratina lemmonii (B.L.Rob.) R.M.King & H.Rob. (original description)
Kyrstenia glechonophylla (Less.) Greene accepted as Ageratina glechonophylla (Less.) R.M.King & H.Rob. (original description)
Kyrstenia grandidentata Greene (original description)
Kyrstenia grandifolia (Regel) Greene accepted as Ageratina grandifolia (Regel) R.M.King & H.Rob. (original description)
Kyrstenia guadalupensis Greene (original description)
Kyrstenia herbacea (A.Gray) Greene accepted as Ageratina herbacea (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia incarnata Greene (original description)
Kyrstenia jucunda (Greene) Greene accepted as Ageratina jucunda (Greene) Clewell & Wooten (original description)
Kyrstenia koelliifolia (Greene) Greene (original description)
Kyrstenia melissoides (Willd.) Greene accepted as Ageratina aromatica (L.) Spach (original description)
Kyrstenia occidentalis Greene (original description)
Kyrstenia oreithales (Greenm.) Greene accepted as Ageratina prunellaefolia (Kunth) R.M.King & H.Rob. (original description)
Kyrstenia pascuarensis (Kunth) Greene (original description)
Kyrstenia paupercula (A.Gray) Greene accepted as Ageratina paupercula (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia rothrockii (A.Gray) Greene accepted as Ageratina rothrockii (A.Gray) R.M.King & H.Rob. (original description)
Kyrstenia tracyi (Greene) Greene accepted as Ageratina aromatica (L.) Spach (original description)
Lasallea Greene accepted as Aster L. (original description)
Lasallea nuttallii Greene (original description)
Lasallea phyllolepis (Torr. & A.Gray) Greene (original description)
Lasallea sericea (Vent.) Greene accepted as Symphyotrichum sericeum (Vent.) G.L.Nesom (original description)
Machaeranthera cichoriacea Greene accepted as Dieteria canescens var. aristata (Eastw.) D.R.Morgan & R.L.Hartm. (original description)
Machaeranthera spectabilis Greene accepted as Dieteria bigelovii var. bigelovii (A.Gray) D.R.Morgan & R.L.Hartm. (original description)
Macronema bolanderi (A.Gray) Greene (original description)
Macronema bolandri Greene (original description)