| Cystium albifolium | Astragalus albifolius (M.E.Jones) Abrams trib. Galegeae |
| Cystium heliophilum | Astragalus salinus Howell trib. Galegeae |
| Cystium idriense | Astragalus idriensis (M.E.Jones) Abrams trib. Galegeae |
| Cystium ineptum | Astragalus ineptus A.Gray trib. Galegeae |
| Cystium kernense | Astragalus kernensis Jeps. trib. Galegeae |
| Cystium latum | Astragalus latus (M.E.Jones) M.E.Jones trib. Galegeae |
| Cystium merrillii | Astragalus merrillii (Rydb.) Tidestr. trib. Galegeae |
| Cystium platyphyllidium | Astragalus merrillii (Rydb.) Tidestr. trib. Galegeae |
| Cystium platytropis | Astragalus platytropis A.Gray trib. Galegeae |
| Cystium salinum | Astragalus salinus Howell trib. Galegeae |
| Cystium sierrae | Astragalus sierrae (M.E.Jones) Tidestr. trib. Galegeae |
| Cystium tehachapiense | Astragalus idriensis (M.E.Jones) Abrams trib. Galegeae |