Thus, in natural communities, if resources are heterogeneous among patches (such as among the bracts in this study), structure in a given patch may be a function of the resource level of that patch ...

Peter K. Endress, Structure and Function of Female and Bisexual Organ Complexes in Gnetales, International Journal of Plant Sciences, Vol. 157, No. 6, Supplement: Biology and Evolution of the Gnetales ...

Yoshihisa Tanaka and colleagues note that their earlier research found that antioxidant polyphenols, contained in the hop leaves (called bracts) could help fight cavities and gum disease. Extracts ...

EPHEDRA is one of the three genera of the small Gymnospermous order Gnetaceæ, the two others being Gnetum and Welwitschia, that most curious of all gymnospermous plants. Ephedra is a type of ...