Spraguea caespitosa Rydb. | Calyptridium monospermum Greene |
Spraguea candicifera (A.Gray) Brockman | Calyptridium umbellatum (Torr.) Greene |
Spraguea eximia Eastw. | Calyptridium monospermum Greene |
Spraguea hallii Rydb. | Calyptridium monospermum Greene |
Spraguea irregularis Rydb. | Calyptridium monospermum Greene |
Spraguea monosperma (Greene) Rydb. | Calyptridium monospermum Greene |
Spraguea montana (M.E.Jones) A.Heller | Calyptridium umbellatum (Torr.) Greene |
Spraguea multiceps Howell | Calyptridium umbellatum (Torr.) Greene |
Spraguea nuda (Greene) Howell | Calyptridium umbellatum (Torr.) Greene |
Spraguea paniculata Kellogg | Calyptridium umbellatum (Torr.) Greene |
Spraguea pulcherrima A.Heller | Calyptridium monospermum Greene |
Spraguea umbellata Torr. | Calyptridium umbellatum (Torr.) Greene |