Native Trees of Western Washington: A Photographic GuideLentz, GaryWe Proceeded On
In addition to greenhouse trials, these and eight other native shrubs and trees were evaluated at four streambank sites, two in western Oregon and two in western Washington. To date, common snowberry, salmonberry, Pacific ninebark, and black twinberry are performing successfully as live stakes ...
Collectively, our work integrates biotic and anthropogenic factors across phylogenetic and functional diversity for both invasion presence and invasion severity of non-native tree species worldwide. Although non-native trees have been relatively overlooked relative to herbaceous plants, their large size, lo...
Tree-ring analyses of 23 bark-stripped trees, mostly Thuja plicata (western red cedar) but also Chamaecyparis nootkatensis (yellow cedar) and Picea sitchensis (Sitka spruce), help describe traditional Native tree-bark exploitation at a site north of Ketchikan in southeast Alaska, USA. Tree-ring...
or ornamental purposes4,18. Along with the passive spread of non-native species, the active propagation of trees by humans can often result in an increased potential to become problematic invaders4,19,20,21. Given the prominent roles of trees in shaping the structure and functioning of ecosystem...
DNA amplification from vegetative and sexual tissues of trees using polymerase chain reaction. Can J For Res 20: 254–257. Brinkman KA (1974). Rubus L. In: Schopmeyer CS (ed.) Seeds of Woody Plants in the United States. U.S. Department of Agriculture, Forest Service: Washington, DC, ...
he lops the branches of surrounding trees to give this room to spread, and expects thus to find next year a more abundant crop' (Rae 1834, 83). Rae's carefully constructed little narrative is unusual in economic literature for its tone and for its modestly elaborated plot; unusual enough ...
Three men posed in front of one of the huge ancient trees in the area of the present-day airport. They were on a “scouting trip” to this area to see if they could find some good land for a family farm. Imagine the devastation felt by the Duwamish People, witnesses to the destructio...
Because the trees at high elevations are more likely to die of old age rather than fire, maintaining serotinous cones would be a disadvantage. Open cones are preferred. Thus, at least in this study, a greater percentage of serotinous cones was found in lodgepole pines at lower elevations ...
Distribution of Western White Pine from USGS ( “Atlas of United States Trees” by Elbert L. Little, Jr. ) Distribution:Western White Pine is native to southern British Columbia, western Washington, northern Idaho, western Montana, the Cascade Mountains of Oregon and the Sierras of California....