Cactus grandiflorus, also known as the Queen of the Night or Selenicereus grandiflorus, is a species of epiphytic cactus native to the tropical regions of Southern Mexico, Central America, and the Caribbean. The plant is renowned for its large, fragrant, white flowers that bloom nocturnally, typically once a year, hence the common name "Queen of the Night." In Hebrew, it is known as שושנת הלילה (Shoshanat HaLayla). The flowers are among the largest produced by any cactus species, reaching up to 30 cm (12 inches) in length and emitting a strong, sweet fragrance that attracts pollinators such as moths and bats. The plant is often cultivated for its ornamental value and is well-suited to warm, humid climates. In Spanish, it is referred to as Selenicereus grandiflorus or Reina de la Noche, while in French, it is called Reine de la Nuit. The cactus typically grows as a vine, climbing trees or other structures with the aid of aerial roots, and can reach lengths of up to 10 meters (33 feet). Its stems are ribbed and segmented, with small, inconspicuous spines.