Cirsium bernardinum (Greene) Davidson & Moxley accepted as Cirsium occidentale var. californicum (A.Gray) D.J.Keil & C.E.Turner (original description)
Cirsium candidissimum (Greene) Davidson & Moxley accepted as Cirsium occidentale var. candidissimum (Greene) J.F.Macbr. (original description)
Cirsium maritimum Davidson & Moxley (original description)
Cirsium mohavense (Greene) Davidson & Moxley accepted as Cirsium mohavense (Greene) Petr. (original description)
Deinandra fasciculata var. ramosissima (Benth.) Davidson & Moxley accepted as Deinandra fasciculata (DC.) Greene (original description)
Deinandra floribunda (A.Gray) Davidson & Moxley (original description)
Deinandra paniculata (A.Gray) Davidson & Moxley (original description)
Pyrrocoma paniculata var. virgata (A.Gray) Davidson & Moxley (original description)
Sideranthus junceus (Greene) Davidson & Moxley accepted as Xanthisma junceum (Greene) D.R.Morgan & R.L.Hartm. (original description)
Zonanthemis clementina (Brandegee) Davidson & Moxley accepted as Deinandra clementina (Brandegee) B.G.Baldwin (original description)