A newly described perennial species form Arunachal Pradesh, northeast India (wrongly named in cultivation as Impatiens mishmiensis). From summer into autumn it produces robust, upright, succulent stems and serrated leaves, carrying white, orchid-like flowers with a yellow throat and lateral sepals that differ in colour from plant to plant, ranging between greenish-white and deep purple. Height 1 metre. Moist, humus rich, well-drained soil in part to full shade in a cool position. It is best pot grown and moved into a sheltered spot in the garden in the summer months. This plant is not hardy and requires full winter protection.