1. Phytoecology Lab, Dept of Botany, Univ. of Peshawar Peshawar Pakistan
2. Govt. Post Graduate College Khar District Bajaur Pakistan
3. Govt. Post Graduate Jehanzeb College Mingora Swat Pakistan
4. Dept of Plant Sciences, Quaid‐i‐Azam Univ. Islamabad Pakistan
5. Pakistan Academy of Sciences Islamabad Pakistan
6. Dept of Botany, Islamia College Univ. Peshawar Pakistan