| Family | PRIMULACEAE |
| Genus species | Primula siamensis Craib sect. Soldanelloides |
| Bibliography | Bull. Misc. Inform. Kew 1922: 238 (1922) |
| Native Range | n. Thailand |
| Primary Biome | Montane Tropical |
| Habitat | rocks |
| Altitude | 1700-2000m |
| Description | leaves oblong-oblanceolate, rounded or obtuse, tapered to petiole, to 8cm long, thinly hirsute, inflorescence sparse, calyx densely farinose, corolla lobes dentate, 1cm |
| Size | 8-15cm |
| Color | violet |
| Bloom | spring |
| Ca | + |
| Type | perennial |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in winter, germ. 3-12 months, 10-16°C division in spring |
| Territory | 4 Asia-Tropical 41 Indo-China (THA Thailand) |