Bidens coronata var. leptophylla (Nutt.) C.Mohr (original description)
Eupatorium mohrii Greene (original description)
Flaveria trinervia (Spreng.) C.Mohr (original description)
Flaveria trinervia Mohr (original description)
Gaillardia lanceolata var. flavovirens C.Mohr accepted as Gaillardia aestivalis (Walter) H.Rock (original description)
Helenium integrifolium Mohr (original description)
Helenium integrifolium C.Mohr (original description)
Helianthus angustifolius var. nemorosus C.Mohr (original description)
Heliopsis minor Mohr (original description)
Heliopsis minor (Hook.) C.Mohr accepted as Heliopsis helianthoides subsp. scabra (Dunal) T.R.Fisher (original description)
Nabalus serpentarius var. barbatus (Torr. & A.Gray) C.Mohr accepted as Nabalus barbatus (Torr. & A.Gray) A.Heller (original description)
Pluchea adnata (Humb. & Bonpl. ex Willd.) C.Mohr accepted as Pluchea salicifolia (Mill.) S.F.Blake (original description)
Pterocaulon undulatum C.Mohr accepted as Pterocaulon pycnostachyum (Michx.) Elliott (original description)
Silphium gatesii Mohr. (original description)
Silphium gatesii C.Mohr accepted as Silphium asteriscus var. asteriscus L. (original description)
Stemmodontia asperrima C.Mohr (original description)
Stemmodontia asperrima Mohr (original description)