A leafy shrub up to 4 m, the stem brittle and breaks easily.
*LEAVES: Simple and opposite, long oval to 13 x 4 cm, tip pointed, narrowed to a short stalk.
*FLOWERS: In conspicuous terminal heads on long stalks seen clearly above the leaves, each small flower lies inside a green-yellow leafy bract 1.5 cm long, its edge clear and membraneous, flowers white or yellowwhiteyellow-white, tubular to 3 cm long, two-lipped with dark purple throat or lines on the lip.
*FRUIT: A capsule, narrowed at the base, containing 4 seeds, surface rough.