Quantitative comparisons of distribution and abundance of exotic species in their native and non-native ranges represent a fi rst step when studying invaders. However, this approach is rarely applied particularly to tree species. Using biogeographical contrasts coupled with regional dispersal surveys, we assessed whether two exotic maple tree species, Acer negundo and Acer platanoides , can be ...

The title compound, C(42)H(63)O(4)P, was isolated from the leaves of Vitex negundo. Two of the tert-butyl groups are disordered over two orientations with occupancy ratios of 0.57 (1):0.43 (1) and 0.67 (1):0.33 (1). Several intra-molecular C-H⋯O inter-actions are observed in the mol-ecular structure.

background and objectives: malaria is a remarkable cause of death in the world. several ways are used by researchers to control or to decrease the detrimental effects of the disease, in which natural insecticides with less malaria vectors resistance and lower environmental damages are considered in last decades.the objective of this study was to assess the larvicidal activity of the whole flowe...

Acer negundo Sarg. (box elder) is a dioecious tree species that dominates riparian systems at mid elevations throughout the southwest and Intermountain West of the United States. Previous studies have shown that female A. negundo trees occur at higher frequencies along stream margins, whereas males occur at higher frequencies in drier microsites. To better understand the adaptive significance o...

To evaluate the characteristics of atmospheric particle retention by plant leaves during the tourism season in Buddhism-based scenic areas, plants distributed in the core area of the Mount Wutai scenic area were selected for study: Populus davidiana (Po. davidiana), Rosa hugonis Hemsl. (R. hugonis), Betula platyphylla Suk. (B. platyphylla), Rosa xanthina Lindl. (R. xanthina), Periploca sepium B...

The use of conventional drugs for the treatment pain and inflammation has largely resulted in various side effects. These challenges have triggered search alternative therapy such as herbal medication that may serve a safe, effective, alternate approach to managing inflammation. Vitex negundo, potential lipophilic molecule, possesses limited solubility permeability. Emulgels are either water-in...