Encyclia citrina (or tulip orchid) is a species of orchid with 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 (indigenous peoples of southwestern United States and northwestern Mexico).