Encyclia citrina

About

Prosthechea citrina, synonym Encyclia citrina, is a species of orchid native to southwest Mexico. It is known as tulip orchid and has a strong lemon fragrance. Its petals are golden yellow with varying degrees of white crenulations in the lip. The plant may be upright or pendant, but the flowers are always pendant. It is also known as the tulip orchid due to its flowers' rounded cup-like shape. It has been referred to for generations as costicoatzontecoxòchitl, meaning "flower in the form of yellow serpent head", by the Nahuas.

Summary from Wikipedia