Deciduous and coniferous trees vary in many more ways than only leaf types. Learn these differences and you'll know which ...

Every spring the conifer trees at the Arnold Arboretum burst out in buds: hundreds of tiny cones, often bright pink, red or yellow. This year, one young spruce is putting on an extra-special show ...

Young giant sequoia trees are seen during a prescribed pile burning on Feb. 19 in Sequoia National Forest. Researchers say 20% of Sierra Nevada conifers are a mismatch with their climate.