Silver vine (also called matatabi) has long been known to elicit euphoric response in cats. It is the most popular cat treat in Asia, thus sometimes cited in manga as matatabi. The reaction to silver vine is similar to the catnip response, but appears to be more intense. Silver vine is an alternative to catnip, and many cats which do not react to catnip will respond positively to silver vine powder made from dried fruit galls. Typical behaviors include rolling, chin and cheek rubbing, drooling, and licking. The effect usually lasts between five and 30 minutes, and cats will usually visit silver vine again after about 20–30 minutes.