Synonyms: Astragalus elegans var. curtiflorus; Astragalus gracilis var. erectus; Astragalus gracilis var. microlobus; Astragalus gracilis var. parviflorus; Astragalus microlobus; Astragalus microphacos; Astragalus parviflorus; Astragalus parviflorus var. microlobus; Astragalus parvifolius (heterotypic); Craccina gracilis (homotypic); Dalea parviflora; Microphacos gracilis (homotypic); Microphacos microlobus; Microphacos parviflorus; Phaca gracilis (homotypic); Phaca microloba; Phaca parviflora (heterotypic); Psoralea parviflora; Tragacantha microloba; Tragacantha parviflora