Lead and cadmium concentrations were investigated in annual growth rings of 10 trees growing in the Royal Park Djurgården in Stockholm. The trees sampled included six oaks, one ash, one pine, one ...

Melissa Breyer was Treehugger’s senior editorial director before moving to Martha Stewart. Her writing and photography have been featured in The New York Times, The Guardian, National Geographic, ...

The water status and water content of embryos of Quercus robur have been determined during development. Using psychrometers, changes in osmotic potential at full imbibition and the proportion of water ...

Now that the glory of aspen gold is passing, it’s time to honor the sturdy oak that adds rich tones of red and russet and umber to the autumn landscape while providing precious calories for birds and ...