👉 Parasicydium is a genus of flowering plants in the family Apocynaceae, native to several tropical regions around the world, including Southeast Asia, Australia, and New Zealand. These species are known for their large, sprawling leaves, which can grow up to 10 feet (3 meters) tall and reach heights as high as 25 feet (7.6 meters). The flowers are often solitary or in clusters with a single, prominent flower at the center.