Phaius callosus is a species in the genus Phaius.
Plant blooms in the spring with many 10 cm wide flowers.
Plant are found growing on mossy boulders and in leave litter in the montane forest of Malaysia, Borneo, Java, Sumatra and Sulawesi at elevations around 1000 to 1800 meters.
Plants require shade and cool to warm temperatures. Plants should be potted in a mix that retain some moisture such as 40% fir bark, 30% sphagnum moss, and 30% soil. Medium should be kept moist during growing season. When growth matures with hold watering for 3 to 4 weeks. Repotting should be done after flowering. . New plants can be obtained from the old spikes by laying the spike out in sand and half covering it.
Common Names: The Callousy Phaius
- Geodorum plicatum Voigt 1845
- *Limodorum callosum Bl 1825
- Phaius callosus var. sumatranus J.J.Sm. 1920
- Phaius kuhlii Rchb.f. 1865