Synonyms
Sphenosciadium capitellatum var. eryngiifolium (Greene) Jeps.
Sphenosciadium capitellatum var. scabrum Jeps.
Sphenosciadium capitellatum A.Gray
Sphenosciadium capitellatum var. validum (Congdon) Jeps.
Sphenosciadium eryngiifolium (Greene) J.M.Coult. & Rose
Selinum capitellatum var. scabrum Munz
Selinum eryngiifolium Greene
Selinum validum Congdon
Selinum capitellatum (A.Gray) Benth. & Hook.f. ex S.Watson