Above: This photo tells an entire story. Taken at Roan Mountain State Park in Tennessee in January, it shows most of the deciduous trees are bare. However, you can easily see the light tan colors of ...

As the autumn leaves flutter to the ground, you might find yourself picking one up, observing its color and shape, and wondering: What kind of tree is this from, anyway? Oregon is best known for its ...

Deciduous leaves change color as pigments degrade and synthesize before falling off their trees. Owen Reiser Every fall, the leaves of deciduous trees undergo a dramatic color change before forfeiting ...

In my last column, I blabbed on about fall colors and how trees are silently but furiously working to survive and grow. This time I will address those questions that have been costing you hours of ...

Well into their senescence period, birch trees' leaves have turned yellow near the Alaska Public Media studios in Anchorage as of Oct. 1, 2021. (Casey Grove/Alaska Public Media) It's green-and-gold ...

When deciduous trees begin to change leaf colors in fall in response to short day length and cool night temperatures, it induces the formation of an abscission layer at the base of the leaf stem ...