title: HPLC analysis of valepotriates in the North American genera Plectritis and Valeriana.
mesh_terms: D039823:Iridoids; D019684:Magnoliopsida / Q000032:analysis*; D009656:North America; D010946:Plants, Medicinal; D011714:Pyrans / Q000032:analysis*; D014632:Valerian / Q000032:analysis*
chemical_list: D039823:Iridoids; D011714:Pyrans; C009643:valtrates (combination)