| Family | MONTIACEAE |
| Genus species | Calandrinia acaulis Kunth |
| Bibliography | Nov. Gen. Sp. [F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth] 6: 78 (1823) |
| Native Range | Mexico to nw. Venezuela and nw. Argentina |
| Primary Biome | Montane Tropical |
| Habitat | grassland and scree |
| Altitude | 2500-4900m |
| Description | leaves linear, acute, 2-5cm long, grass-like, sometimes reddish, flowers 2-3cm across, pentamerous |
| Size | 1-5cm |
| Color | white, rose |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | gravelly, humous, moist, semi-shady site alpine house, moist, humous, gravelly soil, semi-shade |
| Propagation | seed in spring, germ. 1-3 months 18-21°C cuttings of rosettes in summer |
| Synonyms | Calandrinia megarhiza Hemsl. Calandrinia mexicana (Rydb.) Pax & K.Hoffm. Calandrinia meyeniana Walp. Calandrinia saltensis Hauman Claytonia acaulis (Kunth) Kuntze Claytonia humboldtiana Kuntze Claytonia megarhiza (Hemsl.) Kuntze Claytonia meyeniana (Walp.) Kuntze Lewisia megarhiza (Hemsl.) Macbryde Lewisia mexicana (Rydb.) Clay Oreobroma acaule (Kunth) Rydb. Oreobroma megarhizum (Hemsl.) Standl. & Steyerm. Oreobroma mexicanum Rydb. |
| Territory | 7 Northern America 79 Mexico (MXC Mexico Central, MXG Mexico Gulf, MXS Mexico Southwest) 8 Southern America 80 Central America (COS Costa Rica, GUA Guatemala) 81 Caribbean 82 Northern South America (VEN Venezuela) 83 Western South America (BOL Bolivia, CLM Colombia, ECU Ecuador, PER Peru) 85 Southern South America (AGW Argentina Northwest, CLN Chile North) |