- Bartonia paniculata — twining bartonia
- Bartonia virginica — yellow screwstem
- Centaurium exaltatum — tall centaury
- Centaurium muehlenbergii — Monterey centaury
- Frasera albicaulis — purple green-gentian
- Frasera caroliniensis (= Swertia caroliniensis) — Carolina gentian
- Gentiana affinis — prairie gentian
- Gentiana alba — yellow gentian
- Gentiana andrewsii — fringe-top bottle gentian
- Gentiana calycosa — explorer's gentian
- Gentiana clausa — closed gentian
- Gentiana douglasiana — swamp gentian
- Gentiana fremontii — moss gentian
- Gentiana glauca — glaucous gentian
- Gentiana linearis — narrowleaf gentian
- Gentiana nivalis — snow gentian
- Gentiana platypetala — broadpetal gentian
- Gentiana prostrata — pygmy gentian
- Gentiana puberulenta — downy gentian
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- Gentiana rubricaulis — closed gentian
- Gentiana sceptrum — Pacific gentian
- Gentiana x billingtonii
- Gentiana x grandilacustris
- Gentiana x pallidocyanea
- Gentianella amarella — northern gentian
- Gentianella propinqua — four-part gentian
- Gentianella quinquefolia — stiff gentian
- Gentianella tenella — Dane's gentian
- Gentianopsis crinita — fringed gentian
- Gentianopsis detonsa — sheared gentian
- Gentianopsis macounii — Macoun's gentian
- Gentianopsis nesophila — island gentian
- Gentianopsis procera — lesser fringed gentian
- Gentianopsis victorinii — Victorin's gentian
- Halenia deflexa — spurred gentian
- Lomatogonium rotatum — marsh felwort
- Sabatia kennedyana — Plymouth gentian
- Swertia caroliniensis — Carolina gentian
- Swertia perennis — felwort
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