👉 Callisteris is a genus of flowering plants in the family Araceae, which includes over 2,000 species spread across many regions around the world. These plants are commonly known as Callistemons and are native to tropical and subtropical areas like Asia, Australia, Africa, and South America. They have distinct leaf shapes, typically lanceolate or ovate, with a long petiole that grows from the stem. The flowers are usually white, pink, or purple,