A group of cacti is commonly called a Desert. Other collective nouns you may see include Hill and Clump.
A collective noun for cacti is a "forest of cacti." Just like the image it conjures, this collective noun represents a breathtaking sight of cacti standing tall and proud in an arid landscape. A forest of cacti features a multitude of different species, shapes, and sizes, providing an enchanting display of diversity. Each cactus plays its part in creating a unique ecological tapestry, showcasing the resilience and adaptability of these spiny plants. As you step into a forest of cacti, you enter a world where vivid green hues punctuated by bursts of vibrant blossoms create a spectacle, defying the harsh conditions of their surroundings. This collective noun evokes the sense of awe and wonder that arises when encountering the strength and beauty of cacti united harmoniously in a collective existence.
Known collective nouns for Cacti include: