👉 Tropidostethus is a genus of plants in the family Lamiaceae, commonly known as the cacti or succulents. They are characterized by their tall stems, large leaves, and thorny flowers that often have prickly刺刺s. Tropidostethus can grow up to 10 meters (33 feet) tall and is native to the southwestern United States. The term "tropid" means "in a dry climate," referring