Synonyms
Tetraneuris depressa Greene
Actinea torreyana (Nutt.) J.F.Macbr.
Actinella torreyana Nutt.
Actinea depressa Kuntze
Actinella depressa Torr. & A.Gray
Hymenoxys depressa (A.Gray) S.L.Welsh & Reveal
Hymenoxys torreyana (Nutt.) K.F.Parker
Hymenoxys lapidicola S.L.Welsh & Neese