| Gaillardia acaulis | Gaillardia parryi Greene trib. Heliantheae |
| Gaillardia acaulis | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| Gaillardia bracteosa | Gaillardia aristata Pursh trib. Heliantheae |
| Gaillardia crassa | Gaillardia pinnatifida Torr. trib. Heliantheae |
| Gaillardia globosa | Gaillardia pinnatifida Torr. trib. Heliantheae |
| Gaillardia hallii | Gaillardia aristata Pursh trib. Heliantheae |
| Gaillardia lineris | Gaillardia pinnatifida Torr. trib. Heliantheae |
| Gaillardia nervosa | Gaillardia comosa A.Gray trib. Heliantheae |
| Gaillardia richardsonii | Gaillardia aristata Pursh trib. Heliantheae |