Galangal is a member of the tropical ginger family, and has a sharp, strong aroma and warm, clean taste. Like ginger, the edible parts are the knobbly, orange-brown pink rhizomes. When it is old it has a woody texture.
Lemongrass is a genus of Asian, African, Australian, and tropical island plants in the grass family. They are commonly cultivated as culinary and medicinal herbs. They smell of lemons.