In elementary school, most of us learned the basic differences between deciduous and coniferous trees. Deciduous trees have leaves that change color and drop in the fall, and coniferous trees have ...

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 ...

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 ...

There are always exceptions to the rule. Even the broad groupings of evergreens and deciduous trees aren’t 100% true. There ...

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 ...

A little yellowing is normal on most plants during the growing season. When deciduous leaves turn yellow in autumn, the slowing down of the production of chlorophyll -- the green pigment plant cells ...