Leaf morphology, functional trait and altitude response in perennial vetch (Vicia unijuga A. Braun), alfalfa (Medicago sativa L.) and sainfoin (Onobrychis viciifolia Scop.)

Fangfang Zhou, Cory Matthew, Pengfei Yang, Yafeng Huang, Nie Bin, Zhibiao Nan

Ministry of Agriculture and Rural Affairs　State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems　Lanzhou University　Massey University