A lot of people will buy and cook these without realizing what they are drinking. Since we don't get to drink the soup, we have to settle for just looking at the ingredients!!
豬苓 Polyporus umbellatus - is a mushroom / fungus.
木棉花 Bombax ceiba - is the flower of a cotton tree.
澤瀉 Alismataceae - is the stolon of a flowering plant grown in water.
燈芯 Juncales - a flowering plant.
蓮房 lotus seedpod.
果皮 - skin of a citrus fruit.
箄薢 - is the stolon of another plant.
白扁豆 White Hyacinth Bean
赤小豆 Vigna umbellata - is a annual vine legume with yellow flowers.
生熟薏米 Coix Seeds - see Answers.com for an excellent summary in English.
When it is all written out, it looks rather impressive and this is just a small sample of ingredients that go into Chinese medicinal soups.