👉 Helianthium is a genus of flowering plants in the family Asteraceae, native to many parts of Asia and Europe. It consists of several species including Helianthus annuus, Helianthus tuberosus, and Helianthus annulatus. These plants are known for their large, colorful flowers that can reach up to 5 feet tall. The genus name "Helianthium" is derived from the Greek words "helios", meaning sun, and "anth