Astragalus adsurgens var. robustior Astragalus chandonnetii Astragalus nitidus var. robustior Astragalus crandallii Astragalus sulphurescens var. pinicola Astragalus sulphurescens Astragalus striatus Astragalus adsurgens var. albifolius Astragalus adsurgens f. chandonnetii Astragalus adsurgens subsp. robustior Astragalus laxmannii Astragalus adsurgens var. pauperculus Astragalus laxmannii var. robustior
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024