To evaluate nutlets characteristics for systematic relationships, a comprehensive morphological and micro-morphological study of the nutlets of 16 Iranian taxa of Nepeta (Lamiaceae) was conducted using scanning electron ...

affron -Crocus sativus-, the world’s most expensive spice and herbal medicine, is geographically distributed throughout the Mediterranean, East Asia, and Irano-Turanian regions. All of these areas have low annual rainfall, ...