Conyza araneosa (Urb.) Cronquist accepted as Laennecia araneosa (Urb.) G.Sancho & Pruski (original description)
Conyza bonariensis (L.) Cronquist accepted as Erigeron bonariensis L. (original description)
Conyza canadensis (L.) Cronquist accepted as Erigeron canadensis L. (original description)
Conyza confusa Cronquist accepted as Laennecia confusa (Cronquist) G.L.Nesom (original description)
Conyza eriophylla (A.Gray) Cronquist accepted as Laennecia eriophylla (A.Gray) G.L.Nesom (original description)
Conyza microglossa (S.F.Blake) Cronquist accepted as Laennecia microglossa (S.F.Blake) G.L.Nesom (original description)
Conyza parva Cronquist accepted as Erigeron canadensis L. (original description)
Conyza ramosissima Cronquist (original description)
Conyza schiedeana (Less.) Cronquist accepted as Laennecia schiedeana (Less.) G.L.Nesom (original description)
Conyza subspathulata Cronquist accepted as Conyza laevigata (Rich.) Pruski (original description)
Dubautia sherffiana Fosberg (original description)
Erigeron formosissimus var. typicus Cronquist (original description)
Erigeron formosissimus var. viscidus (Rydb.) Cronquist (original description)
Erigeron glabellus subsp. pubescens (Hook.) Cronquist accepted as Erigeron glabellus var. pubescens Hook. (original description)
Erigeron glabellus subsp. typicus Cronquist accepted as Erigeron glabellus var. glabellus Nutt. (original description)
Erigeron speciosus var. macranthus (Nutt.) Cronquist accepted as Erigeron speciosus (Lindl.) DC. (original description)
Erigeron speciosus var. typicus Cronquist accepted as Erigeron speciosus (Lindl.) DC. (original description)
Erigeron subtrinervis subsp. conspicuus (Rydb.) Cronquist accepted as Erigeron speciosus (Lindl.) DC. (original description)
Erigeron subtrinervis subsp. typicus Cronquist (original description)
Erigeron uintahensis Cronquist (original description)