| Diplopappus alpinus | Ionactis alpina (Nutt.) Greene trib. Astereae |
| Diplopappus elegans | Aster tricephalus C.B.Clarke trib. Astereae |
| Diplopappus grandiflorus | Erigeron caespitosus Nutt. trib. Astereae |
| Diplopappus grindelioides | Haplopappus grindelioides (Less.) DC. trib. Astereae |
| Diplopappus laevigatus | Afroaster laevigatus (Sond.) J.C.Manning & Goldlatt trib. Astereae |
| Diplopappus macrocephalus | Haplopappus macrocephalus (Poepp. ex Less.) DC. trib. Astereae |
| Diplopappus pinifolius | Symphyotrichum vahlii (Gaudich.) G.L.Nesom trib. Astereae |
| Diplopappus pinnatifidus | Haplopappus pinnatifidus Nutt. trib. Astereae |
| Diplopappus roylei | Aster molliusculus (Lindl. ex DC.) C.B.Clarke trib. Astereae |
| Diplopappus spinulosus | Haplopappus diplopappus J.Rémy trib. Astereae |