This elegant 1966 semi-postal set from the Republic of Indonesia showcases five native and culturally cherished flowers. Each stamp bears an additional surtax (+10 or +15 sen) supporting social welfare causes. The designs include Kembodja (Plumeria), Melati (Jasmine), Tjempaka Kuning (Yellow Champaka), Matahari (Sunflower), and Larat (Orchid). Vividly printed with rich color gradients and botanical realism, these stamps represent Indonesia’s lush tropical flora and serve as a beautiful fusion of art, charity, and national pride.