Synonyms
Tragacantha umbellata (Bunge) Kuntze
Phaca littoralis Rydb.
Phaca frigida var. littoralis Hook.
Astragalus alpinus var. littoralis (Hook.) E.Sheld.
Astragalus frigidus var. littoralis (Hook.) S.Watson
Astragalus littoralis (Hook.) Coville & Standl. ex Mertie
Phaca frigida var. demissa Ledeb.