The conservation of rare and endangered medicinal plants, such as Cremastra appendiculata, is hindered by a limited understanding of their intrinsic endangerment mechanisms. This study employed a plant vitality analyzer (model: ZT-FIA-1, Jiangsu Zhongtian Zhigan Life Data Co., Ltd., China) to systematically measure 50 electrophysiological kinetic parameters in the leaves of C. appendiculata and the fast-growing reference species Isatis tinctoria. Parameters encompassed water metabolism, nutrient transport, dielectric substance translocation, energy metabolism, and comprehensive stress resistance. Compared with I. tinctoria, C. appendiculata exhibited significantly higher intrinsic resistance... More >