杜仲始载《神农本草经》列为上品,临床用于补阳,由于杜仲是一种常用中药材,临床需用量是益增加,但原植物却需十年左右才 Eucommia contains the “Shen Nong’s Herbal Classic” as a top grade, which is used clinically to make up for Yang. Since Eucommia is a commonly used Chinese medicinal material, the amount of clinical use is expected to increase, but the original plant needs only about 10 years.