so the tree itself pushes outward against the bark. On some species, the pressure causes thin layers of the protective outer cork layer to separate and peel away. This is common to sycamore ...

Other twig structures used in tree identification include stipule scars, bud scale, and fruit scars, spur shoots, and lenticels. Twigs are a great marker if you know what to look for. The bark is ...

Training one’s eye to identify ... bark. Winter and early spring are wonderful times to look closely at the nature of trees in their most basic form and a good time to explore the varieties of ...

Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on ...

Meet the honey locust. Purdue Extension forester Lenny Farlee explains that large, long yellow seed pods that resemble bean pods, the option of single or doubly compound leaves on the same tree and ...

"The open question is whether the bark is thick enough to help trees survive." Pellegrini and his colleagues looked at 572 tree species in regions across the globe. They compared bark thickness ...