Eukaryota | Plantae | Pteridobiotina | Tracheophyta | Magnoliopsida | Capparales | Brassicaceae | Brassicoideae | Physarieae | Physaria | Physaria floribunda | Physaria floribunda subsp. osterhoutii
COL:CS5HF | COL:P | COL:CMQ8S | COL:TP | COL:MG | COL:V5D96 | COL:C6GCC | COL:C6GDD | COL:KVPQZ | COL:C823G | COL:4HG35 | COL:7KMNJ
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Britton & Brown |  |  | Juss. ex Bercht. & J.Presl | Burnett | Prantl & Karl | B.L.Rob. | (Nutt. ex Torr. & A.Gray) A.Gray | Rydb. | (Payson) O'Kane