Prosthechea vitellina is native to Mexico, Guatemala and El Salvador. In Mexico, they are found on mountain slopes directed to the Gulf of Mexico, in the states of Veracruz, Puebla, Oaxaca and Chiapas. They usually grow epiphytically in damp pine and oak forests, in rain forests and on bushes in areas of dwarf vegetation in areas covered with lava, at altitudes of 1400-2600 m. It is a medium sized, cool to cold growing epiphyte, which reaching 20-28 cm tall, with conical-ovoid, slightly compressed, 2.5-6.4 cm tall pseudobulb with two, apical, subcoriaceous, narrowly elliptic, obtuse, 15-23 cm long and about 5 cm wide leaves.The Yolk-Yellow Prosthechea blooms in the spring through fall on a apical, 30 to 45cm long, simple to few branched inflorescence that has a basal sheath and arises on a mature pseudobulb, that carrying 4 to 12, long-lived, orange to deep scarlet, showy, resupinate, wide open flowers. The flowers are up to 6.4 cm in diameter, are flat and rarely distributed on the upper half of the flowering shoot. The wide, spread petals of both whorls are sharp and can be orange, cinnamon-red, dark-red or cinnabar. The narrow, dagger-shaped dander is shorter than the petals, it may be yellow or orange-yellow and may have orange-red dots.
