Despite its reduction to equatorial regions, rainforests still offer a rich ecosystem with four distinct layers: the emergent layer, the canopy, the understory, and the forest floor. Each layer ...

Plants Out of Place” exhibit at Carnegie Museum of Natural History in Pittsburgh examines the complexities of invasive plants.

As the days get longer and the sun warms the forest floor, hepatica flowers start emerging. These charming early bloomers ...

Two studies at Holdren Arboretum look at how global warming may change to order in which plants emerge from the ground and ...

Western trillium,” she said, “are plentiful in Arcata’s Redwood Park and Vietor Memorial Forest behind Humboldt Area ...