Opuntia trichopora (Engelm. & J.M.Bigelow) Britton & Rose in Smithsonian Misc. Collect. 50: 535. 1908
Opuntia trichopora in Smithsonian Misc. Collect. 50: 535. 1908
is new combination for Opuntia missouriensis var. trichophora in Proc. Amer. Acad. Arts 3: 300. 1856