Felwort (Swertia) is a biological genus in the family Gentianaceae (Gentians) and order Gentianales.
Swertia perennis
Swertia usambarensis
Centaurium
Cicendia
Comastoma
Gentianella
Fagraea
Swertia
Gentianopsis
Gentiana
Voyria
Frasera
Lisianthius
Lomatogonium
Obolaria
Eustoma
Prepusa
Sabatia
Schenkia
Bartonia
Halenia
Enicostema
Schultesia
Zeltnera