| Family | RANUNCULACEAE |
| Genus species | Ranunculus castellanus Boiss. & Reut. ex Freyn |
| Bibliography | Prodr. Fl. Hispan. [M.Willkomm & J.M.C.Lange] 3: 932 (1880) |
| Native Range | nw. Spain |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 0-1200m |
| Description | leaves long petiolate, in outline cordate-ovate, trisect, segments remote, orbiculate, 2-3-partite, ultimate segments obovate, sparsely pilose, flowers solitary, ca. 2cm |
| Size | 7-20cm |
| Color | yellow |
| Bloom | late spring, summer |
| Ca | |
| Type | tuberous perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 10-16°C division of resting tubers |
| Synonyms | Ranunculus bulbosus ssp. castellanus (Boiss. & Reut. ex Freyn) P.W.Ball & Heywood |
| Territory | 1 Europe 12 Southwestern Europe (SPA Spain) |