Syrian rue (Peganum harmala L., Zygophyllaceae) has been used in traditional medicine of Central Asia, the Middle East, and Caucasus areas (Azerbaijan) for centuries, mainly as ritual and psychedelic plant. At full growth, this erect, dichotomously branched shrub is about 1 m in height with a dense foliage consisting of narrow, linear, pinnate leaves with acute spreading lobes, and small...