Changshan

Changshan can refer to several things, most notably a type of traditional Chinese garment and a place name. As a garment, Changshan is a long, loose robe traditionally worn by men in China. It typically features a high collar, frog fastenings down the front, and wide sleeves. While once a common everyday wear, it is now more often seen in formal occasions or as part of traditional dress. The design and fabric of a changshan could vary, reflecting the wearer's social status and the season.

In terms of place names, Changshan (常山) is the name of a county in Hebei Province, China. It is located in the northwestern part of the province. Historically, Changshan has been an area of strategic importance due to its geographical location. The county is known for its agricultural production and some industrial activities. It is also the origin of the traditional herbal medicine known as Changshan, which is derived from the *Dichroa febrifuga* plant. This plant has been used in traditional Chinese medicine for its antimalarial and antipyretic properties.