Cirsium callilepis var. oregonense (Petr.) J.T.Howell accepted as Cirsium remotifolium var. odontolepis Petr. (original description)
Cirsium callilepis var. pseudocarlinoides (Petr.) J.T.Howell accepted as Cirsium remotifolium var. odontolepis Petr. (original description)
Cirsium ciliolatum (L.F.Hend.) J.T.Howell (original description)
Cirsium douglasii var. canescens (Petr.) J.T.Howell accepted as Cirsium douglasii var. breweri (A.Gray) D.J.Keil & C.E.Turner (original description)
Cirsium hydrophilum var. vaseyi (A.Gray) J.T.Howell (original description)
Cirsium proteanum J.T.Howell accepted as Cirsium occidentale var. venustum (Greene) Jeps. (original description)
Hymenoxys cabrerae K.F.Parker (original description)
Hymenoxys ivesiana (Greene) K.F.Parker accepted as Tetraneuris ivesiana Greene (original description)
Hymenoxys robusta (Rusby) K.F.Parker (original description)