Definition
Harrisia is a genus of night-blooming cacti native to the Americas, known for their slender, often sprawling stems and large, fragrant flowers that open at night. They resemble alien plants in some sci-fi movie, adding an element of mystery. Unlike desert cacti, some species can tolerate slightly moister conditions. Their stems are typically ribbed and spiny, but the spines are less formidable than those of ferocactus. Harrisia cacti are often found climbing on other vegetation. They are appreciated for their nocturnal beauty and sweet fragrance.