Abstract
Thalictrum Linnaeus (1753: 545) is one of the largest genera in the Ranunculaceae, consisting of 150–200 species distributed in Africa, America, Asia and Europe (Wang & Wang 1979, Tamura 1995, Fu & Zhu 2001). In China, approximately 100 species are recognized for the genus (Fu & Zhu 2001, Wang 2013, 2014, 2016a, 2017a, b, Li et al. 2015, Yuan & Yang 2017).