Cereus pasacana

Cereus pasacana is a large, columnar cactus species native to South America. It is characterized by its tall, blue-green stems, which can reach up to 40 feet in height. The stems are segmented and ribbed, with prominent, woolly areoles bearing clusters of spines. Cereus pasacana is a night-blooming cactus, producing large, white, fragrant flowers that open at night and close by morning.