Eukaryota | Plantae | Pteridobiotina | Tracheophyta | Magnoliopsida | Fabales | Fabaceae | Astragalus | Astragalus flexuosus | Astragalus flexuosus var. greenei
COL:CS5HF | COL:P | COL:CMQ8S | COL:TP | COL:MG | COL:383 | COL:623QT | COL:34JM | COL:KZP2S | COL:5MF5V
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Britton & Brown |  |  | Bromhead | Lindl. | L. | (Hook.) Douglas ex G.Don | (A.Gray) Barneby