首乌不是德庆独有，可却是德庆之特产。如何辨别是德庆的何首乌呢？一要看薯块横割面有无菊花纹状；二看蒸熟后是否柔软显油质光泽；三看用其煲猪肉后，肉块是否呈黄色。尤其肥肉及汤，最显金黄色泽；四看生食熟食是否甘凉，有无生津止渴之感。德庆何首乌是四样具备，德庆以外 Shouwu is not unique to Deqing, but it is the specialty of Deqing. How to identify Deqing is Polygonum it? A look at the potato cross section with or without chrysanthemum cross-shaped; second look steamed soft oil quality luster; three to see its pot of pork, the meat is yellow. In particular, fat and soup, the most golden brown color; Fourth, raw food cooked to see if cool, with no sense of thirst quencher. Deqing Polygonum multiflorum are all four, Deqing outside