Can someone please tell me the definition of the term "Irano-Turanian" in reference to plant distribution? Thanks. Alec McClay Research Scientist, Biological Control of Weeds alec at aec.arc.ab.ca Alberta Research Council Phone (403) 632-8207 Bag 4000, Vegreville Fax (403) 632-8612 Alberta T9C 1T4, Canada