👉 Perognathus is a genus of plants in the family Araceae, native to South America. It includes various species that are found in subtropical and tropical regions such as the Andes Mountains, the Amazon Basin, and parts of Central America. These plants can be found growing in a variety of habitats, including forests, grasslands, and savannas. Perognathus is characterized by its upright leaves with long petioles, which are often arranged in groups or clusters along