Open Access Research Paper Views (577) Study of floristic-ecologic diversity and essential oil variation in Stachys lavandolifolia vahl populations from west of Iran Afagh Yavari, Seyed Mehdi Shahgolzari J. Biodiv. & Environ. Sci. 7(1), 281-290, July 2015. Keywords: D.S.S method, Essential oil, Floristic-ecologic, Stachys Details