👉 Humboldtia is a genus of flowering plants in the family Araceae, native to the southern United States and parts of Mexico. It includes around 25 species that are commonly known as "humboldtias." These plants are characterized by their distinctive, bulbous, leafy leaves, which can be up to 10 inches long and wide, and their large, tubular flowers with white or pinkish petals and a white or pale purple stamens.