Female (left) and male spruce cones at the Arnold Arboretum. It's a more common sight to see separate male and female cones like this. (Courtesy William "Ned" Friedman) Every spring the conifer trees ...

Wow, am I ever getting complaints about all those spruce cones. There seems to be an unbelievable bumper crop of cones both in trees and on lawns this spring. Their abundance has been quite a topic of ...

Plant physiologists from MSU proved for the first time that dangerous reactive oxygen species that are often considered as by-products of energy generation in cells, are required by the conifers to ...