A plant cultivated for its hallucinigenic properties. It is native to the island of Jern, but seems unable or unwilling to grow anywhere else. Experiments to grow it elsewhere have centred on the nearby island of Thull, which has a very similar climate to Jern; these experiments were an unexplainable failure. The Spiceweed trade is a large part of Jern's economy. Rumours persist of chronic spiceweed users developing psionic abilities.