| Centaurium erythraea Rafn |
1 |
European centaury, common centaury [H&C, VPBC2] |
| Centaurium exaltatum (Griseb. in Hook.) Wight ex Piper [H&C] |
0 |
western centaury [H&C], Great Basin centaury [IMF4] |
| Frasera albicaulis Douglas var. albicaulis [H&C] |
2 |
white-stemmed frasera [IMF4] |
| Frasera albicaulis Griseb. var. columbiana (St. John) Hitchc. |
1 |
Columbia frasera [H&C] |
| Frasera albicaulis Griseb. var. nitida (Benth.) Hitchc. |
3 |
shiny frasera [H&C] |
| Frasera fastigiata (Pursh) Heller [H&C] |
1 |
clustered frasera [H&C], Umpqua green-gentian [JPM] |
| Frasera speciosa Dougl. ex Griseb. [H&C] |
3 |
giant frasera [H&C, IMF4], elkweed [IMF4] |
| Gentiana affinis Griseb. in Hook. [H&C] |
5 |
pleated gentian [H&C], prairie gentian [H&C, VPBC2], Rocky Mtn. gentian [IMF4] |
| Gentiana calycosa Griseb. in Hook. |
3 |
explorer's gentian, mt. bog gentian [H&C] |
| Gentiana douglasiana Bong. [H&C] |
3 |
swamp gentian [H&C] |
| Gentiana glauca Pall. [H&C] |
5 |
glaucous gentian [H&C] |
| Gentiana sceptrum Griseb. in Hook. [H&C] |
0 |
staff gentian, king's gentian |
| Gentianella amarella (L.) Boerner ssp. acuta (Michx.) J. Gillett |
8 |
felwort [IMF4], northern gentian [VPBC2] |
| Gentianella tenella (Rottb.)Boerner |
3 |
slender gentian [VPBC2], Lapland gentian [IMF4] |
| Swertia perennis L. [H&C] |
1 |
swertia [H&C & IMF4], alpine bog swertia [VPBC2], also felwort [IMF4] |
| Zeltnera muehlenbergii (Griseb.) G. Mans. [JPM2] |
2 |
Muhlenberg`s centaury |