| Family | PRIMULACEAE |
| Genus species | Primula calderiana Balf.f. & R.E.Cooper sect. Petiolares |
| Bibliography | Notes Roy. Bot. Gard. Edinburgh 9: 7 (1915) |
| Native Range | s. Tibet to e. & c. Himalaya |
| Primary Biome | Subalpine |
| Habitat | grassland |
| Altitude | 3500-4900m |
| Description | fragrant, leaves winged petiolate, oblong to spathulate, crenate, obtuse, efarinose, flowers 4-10 in umbel, flowers 15-35mm across, lobes suborbiculate |
| Size | 5-30cm |
| Color | dark purple, white |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | humous, moist, but in winter drier, semi-shady site alpine house, moist, humous soil, shading in summer |
| Propagation | seed in winter, germ. 3-12 months, 10-16°C division in spring just as young growth commences |
| Synonyms | Primula dianae Balf.f. & R.E.Cooper Primula gammieana King ex Balf.f. Primula laeta W.W.Sm. Primula obtusifolia var. roylei G.Watt Primula roylei (Watt) Balf.f. & W.W.Sm. Primula roylei ssp. calderiana (Balf.f. & R.E.Cooper) W.W.Sm. & Forrest Primula roylei ssp. dianae (Balf.f. & R.E.Cooper) W.W.Sm. & Forrest Primula roylei ssp. gammieana (King. ex Balf.f.) W.W.Sm & Forrest |
| Territory | 3 Asia-Temperate 36 China (CHT Tibet) 4 Asia-Tropical 40 Indian Subcontinent (EHM East Himalaya, NEP Nepal) |