Two previously undescribed triterpenoid saponins from the roots and rhizomes of Caulophyllum robustum Maxim. - Zhang, Cong-Yu; Wang, Yu-Mei; Qiu, Peng-Cheng; Feng, Jia-Yu; Wang, Bing-Wen; Cao, Yu; Wei, Yi-Sha; Zhou, Yi-Tong; Tang, Hai-Feng; Lu, Yun-Yang; Zhang, Qian (Frontiers in Chemistry, 2025)