Larger leaves favor photosynthetic production of a sugar-rich fluid to nourish the tree, but if the tree is too tall, the nutrient flow is slowed. Why are the leaves on the tallest trees all about the ...

Figure 1: Global distribution of instances of drought impacts on forests reviewed in this study. Figure 2: Drought responses of diameter growth rate and mortality rate as a function of tree size.

Ever wonder about the age of that beautiful tree growing in your parkway? A chart from The Morton Arboretum can help. “That large tree in your front yard is a venerable giant that needs to be ...