NANCHANG, May 27 (Xinhua) -- Xie Manyue, a Chinese entrepreneur, enjoys walking in the forest for relaxation while also checking on the growth of her Dendrobium officinale stems, which are often used in the time-honored traditional Chinese medicine (TCM). Nowadays, these herbs are sold not only in China, but also many overseas markets. As global consumers try out herbal tea and dive into hot spring spas, tr