👉 Physostega is a genus of flowering plants in the family Asteraceae. It belongs to the family of wildflowers and includes about 100 species, which are native to a wide range of habitats from tropical rainforests to deserts. Physostega is characterized by its large flowers that can reach up to 45 cm (18 inches) in diameter, with each flower typically containing 25-35 petals. The leaves are usually sessile and long,