| Family | RANUNCULACEAE |
| Genus species | Trollius riederianus Fisch. & C.A.Mey. |
| Bibliography | Index Seminum (LE, Petropolitanus) 4: 48 (1838) |
| Native Range | Russian Far East to n. Japan and sw. Alaska |
| Primary Biome | Temperate |
| Habitat | grassland |
| Description | basal leaves petiolate, palmati-3-5-partite, segments rhombic, deeply incised into unevenly serrate lobes, stem leaves 1-3, similar, flowers 3-4cm across, sepals oval |
| Size | 5-40cm |
| Color | orange yellow |
| Bloom | early summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in winter, germ. 3-12 months, 10-16°C division in late summer |
| Synonyms | Trollius japonicus f. peduncularis Nakai Trollius kurilensis Sipliv. Trollius miyabei Sipliv. |
| Territory | 3 Asia-Temperate 31 Russian Far East (KAM Kamchatka, KHA Khabarovsk, KUR Kuril Is., PRM Primorye, SAK Sakhalin) 38 Eastern Asia (JAP Japan) 7 Northern America 70 Subarctic America (ALU Aleutian Is., ASK Alaska) |