Chemotype differentiation and environmental drivers of bioactive metabolites in Cordyceps chanhua from diverse geographical origins - Qiucheng Luo; Gangxiang Fei; Xiaoguang Tian; Shuang Han; Jingqiang Guan; Bo Song; Longzhan Gan; Yeming Zhou; Zhijie Wang; Hongbo Lan; Xiao Zou (Biochemical Systematics and Ecology, 2026)