Saw-edge heather

From PathfinderWiki

While saw-edge heather is a medicinal plant in its own right, when combined with harrowleaf, pathos berries, night nettle tea, and somnus root, it can be transformed into a pain-inducing chemical popular with worshipers of Zon-Kuthon. Cultivated near the Mindspin Mountains of eastern Nidal for use in the large settlements of Nidal, and beyond, the region produces a significant portion of Avistan's total production of each of these crops.1

References