Cloning and Characterization of DEADbox RNA Helicases Gene from the Fern Equisetum arvense MELASMOSIDE --A NOVEL MON0TERPENOID GLUC0SIDE FR0M MELASMA ARVENSE THE IRIDOID GLUCOSIDES OF MELASMA ARVENSE THE MONOTERPENOIDE GLUCOSIDES FROM MELASMA ARVENSE EFFECT OF THE POPULATION COMPLEX OF WILD OATS AND BASTARD CRESS ON WHEAT YIELD Three New Phenolic Glycosides from the Fertile Sprouts of Equisetum arvense Allelopathy of Equisetum arvense extract on seed germination and seedling growth of wheat Textual studies on Xanthium sibiricum in ancient Chinese medicinal literatures