"Pogostemon purpurascens, Sangbrei, is an erect or suberect branched herbs belongs to Lamiaceae family. Leaves 7 x 5 cm, ovate, oblique at base, acute at apex, irregularly dentate, nerves 4 pairs; petiole 1 cm long. Spikes 10-20-flowered, clustered, racemose or panicled; bracteoles 6 x 4 mm, ovate-falcate, regularly imbricating, hairy. Flowers densely packed; calyx 5 mm long, lobes acute; corolla purple, 6 mm long, hairy, lobes acute, hairy; filaments bearded with purple moniliform hairs. Nutlets trigonous, dark brown, smooth