**Author details**

Nasir Shad1 \*, Ling Zhang1 , Ghulam Mujtaba Shah2 , Fang Haifu1 , Muhammad Ilyas3 , Abbas Ali2 and Salman Ali Khan<sup>2</sup>

1 Key Laboratory of Silviculture, College of Forestry, Jiangxi Agricultural University, Nanchang, China

2 Department of Botany, Hazara University Mansehra, Pakistan

3 College of Forestry, Huazhong Agricultural University, Wuhan, China

\*Address all correspondence to: dearbotanist@gmail.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
