Synonyms
Diholcos haydenianus (A.Gray ex Brandegee) Rydb.
Astragalus haydenianus f. nelsonii Gand.
Homalobus grallator (S.Watson) Rydb.
Astragalus haydenianus f. leiocarpus Gand.
Astragalus bisulcatus subsp. haydenianus (A.Gray ex Brandegee) W.A.Weber
Astragalus scobinatulus E.Sheld.
Tragacantha haydeniana (A.Gray ex Brandegee) Kuntze
Astragalus haydenianus A.Gray ex Brandegee
Astragalus grallator S.Watson
Diholcos scobinatulus (E.Sheld.) Rydb.