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Leaf ecological stoichiometry not only reflects the plasticity and adaptability, but also the growth of plants within environments where temperature, precipitation, and soil properties vary across an elevation gradient.  Ligularia virgaurea  (Maxim.) Mattf. ex Rehder &amp;amp; Kobuski — an invasive poisonous plant — is common in the northeast portion of China’s Qinghai-Tibetan Plateau and its presence greatly affects the native ecosystem. Based on  L. virgaurea  leaf carbon ([C] leaf ), nitrogen ([N] leaf ) and phosphorus ([P] leaf ) concentrations, and their ratios, the species’ coping strategies across an elevation gradient (2,600 m, 3,000 m, and 3,300 m) were identified, and served to inform the development of improved management strategies. Mean [C] leaf , [N] leaf  and [P] leaf  in  L. virgaurea  across all elevations were 413.14 g·kg −1 , 22.76 g·kg −1 , and 1.34 g·kg −1 , respectively, while [C] leaf : [N] leaf , [C] leaf : [P] leaf , and [N] leaf : [P] leaf  were 18.27, 328.76, and 17.93. With an increase in precipitation and decrease in temperature from 2,600 m to 3,000 m–3,300 m, [C] leaf , [C] leaf : [N] leaf  and [C] leaf : [P] leaf  of  L. virgaurea  decreased at first and then increased. The [N] leaf  and [P] leaf  gradually increased, whereas [N] leaf : [P] leaf  showed little change. Although temperature, precipitation and soil water content were the main factors affecting the ecological stoichiometry of  L. virgaurea  leaves, their roles in influencing leaf elements were different. The [C] leaf  was mainly influenced by soil water content, [N] leaf  by temperature and soil water content, and [P] leaf  by all of them. With potential future climate change in the study area,  L. virgaurea  may grow faster than at present, although soil P may still be a growth-limiting element. As  L. virgaurea  can reduce plant diversity and the quality of forage, while increasing biomass, management of  L. virgaurea  should receive greater attention.

Using Leaf Ecological Stoichiometry to Direct the Management of Ligularia virgaurea on the Northeast Qinghai-Tibetan Plateau