| Zaadplanten | Kern angiospermen |
| Claden_1 | eudicots |
| Domein | Eukaryota Whittaker & Margulis |
| Supergroep | Archaeplastida (Plantae) Adl et al. |
| Rijk | Viridiplantae Cavalier-Smith |
| Subrijk | Streptobionta Kenrick & Crane |
| Superstam | Embryophyta Engler |
| Stam | Magnoliophyta Cronquist, Takht. & W. Zimm. ex Reveal |
| Orde | Ranunculales Juss. ex Bercht. & J.Presl |
| Familie | Berberidaceae Juss. |
| Subfamilie | Podophylloideae Eaton |
| Geslacht | Plagiorhegma Maxim. |
| Soort | dubium Maxim. |
| Synoniem | Jeffersonia dubia (Maxim.) Benth. & Hook. f. ex Baker & Moore |
Plagiorhegma dubium Maxim.
