Rehmannia glutinosa is a flowering broomrape, and one of the 50 fundamental herbs used in traditional Chinese medicine, where it has the name shēng dì huáng (Chinese: 生地黄). It is often sold as gān dì huáng (Chinese: 干地黄), gān meaning "dried". Unlike the majority of broomrapes, R. glutinosa is not parasitic, and is capable of independent photosynthesis. Source: Wikipedia (en)