By December, most plants have shed their leaves and disperse their seeds. There are many fascinating ways in which the plants ensure the dispersal of their seeds to allow successful germination. Seeds ...

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 ...

No one looks forward to seasonal allergies. The sniffling, sneezing and coughing can put a damper on the day. Pollen can make these symptoms even worse. The solution? Plant female trees. That's what ...

The squiggly trunks and branches of Black Locust stand out in the winter landscape. Photos by Katie Finch Leaves are probably the most common feature used to identify trees. But in winter, when so ...