权威例句
BioOne Online Journals - Systematic Botany - 30(4):887 - Full TextGuaianolide α-arabinopyranosides from Helenium amarumAntiproliferative sesquiterpene lactones from the roots of Inula helenium.Antimycobacterial eudesmanolides from Inula helenium and Rudbeckia subtomentosaConstituents of Helenium Species. XIII. The Structure of Helenalin and Mexicanin ATumor cell specific toxicity of Inula helenium extracts.Antitumor sesquiterpene lactones from Helenium microcephalum : Isolation of mexicanin-E and structural characterization of microhele...Chemical Composition of the Essential Oil of Helenium amarum (Raf.) H. Rock from CubaToxicity and milk bittering properties of tenulin, the major sesquiterpene lactone constituent of Helenium amarum (bitter sneezeweed).Constituents of Helenium species—XVI