Herbs that Tonify Yang

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Which herb warms Kidney yang and disperses cold and dampness from the lower jiao, making it useful for treating abdominal pain and hernia pain (Shan disorder)?
Hu Lu Ba is fenugreek seed. It's good for Shan disorder (bulging disorder).

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 783. [Q1123]