Bengal Pogostemon

Bengal Pogostemon is a large herb which looks like a shrub 1-2 m tall. Stem and branches are quadrangular, purplish and shining. The whole plant has a strong odour. Oppositely arranged, broadly ovate leaves are 7-12 cm long, with coarsely double-toothed margins. Flowers occur in dense spikes forming a large pyramid-like panicle. Purple flowers are 2-lipped, 5-6 mm, with 4 protruding stamens. Flowering: December.