| Family | GENTIANACEAE |
| Genus species | Swertia perennis L. |
| Bibliography | Sp. Pl. 1: 226 (1753) |
| Native Range | Europe to Caucasus, ne. China, Japan, Aleutian Islands to w. & wc. USA |
| Primary Biome | Temperate |
| Habitat | grassland |
| Description | leaves oval to elliptic, yellow-green, upper leaves amplexicaule, flowers stellate, 2-3cm across, in lax raceme, petals acute |
| Size | 15-30cm |
| Color | blue, reddish violet |
| Bloom | summer |
| Ca | - |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 10-13°C division in spring; cuttings in late summer |
| Synonyms | Blepharaden perennis (L.) Dulac Gentiana palustris All. Gentiana paniculata Lam. Gentiana swertia E.H.L.Krause Swertia alpestris Baumg. Swertia congesta A.Nelson Swertia covillei Greene Swertia fritillaria Rydb. Swertia intermedia Schur Swertia manshurica (Kom.) Kitag Swertia occidentalis Greene Swertia ovalifolia Greene Swertia palustris A.Nelson Swertia parallela Greene. Swertia perennis var. alpestris (Baumg.) Domin & Podp. Swertia perennis ssp. covillei (Greene) A.E.Murray Swertia perennis var. manshurica Kom. Swertia scopulina Greene Swertia turfosa Baumg. ex Steud. |
| Territory | 0 Circumpolar 1 Europe 11 Middle Europe (AUT Austria, CZE Czechoslovakia, GER Germany, POL Poland, SWI Switzerland) 12 Southwestern Europe (FRA France, SPA Spain) 13 Southeastern Europe (BUL Bulgaria, ITA Italy, ROM Romania, YUG Yugoslavia) 14 Eastern Europe (BLR Belarus, BLT Baltic States, RUE East European Russia, RUN North European Russia, RUS South European Russia, RUW Northwest European Russia) 3 Asia-Temperate 33 Caucasus (NCS North Caucasus) 36 China (CHM Manchuria) 38 Eastern Asia (JAP Japan) 7 Northern America 70 Subarctic America (ALU Aleutian Is., ASK Alaska) 71 Western Canada (BRC British Columbia) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming) 76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |