Sanfew

Sanfew is a Druid who is found at the upstairs of the herblore shop in Taverley. He plays a part in a couple of quests. You can trade Goutweed to him for other herbs. You talk to him in the quest Druidic Ritual and he says he need a raw chicken, a raw beef, a raw bear meat and a raw rat meat, dipped in a special cauldron in the dungeon just south of Taverey.