There are some nice tea houses in Shanghai and a must taste is the Chrysanthemum tea. Served in most tea houses this special tea has unique taste. It is a mixture of Chrysanthemum flowers and chines wolfberries. the lysium barbarum wolfberry species grown in Ningxia, Tibet and the Himalayan regions are supposedly beneficial for health (antioxidant and anti aging). Here are images of the old tea house in Yuyuan gardens, expensive and touristic but a must wisit for the time visitor in search of impression of Old shanghai.
Green tea sencha and Maofeng Huangshan grown mostly around the Yellow mountains.
When in Shanghai come to these tea rooms. The Old Shanghai Tea House and the Old China Hand Reading room.