Pando is an ancient quaking aspen tree (Populus tremuloides ... according to the Forest Service, and the plant should continuously regenerate the parts of itself that wither and die.

Aspen, one of the few broad-leaved trees to grow at high altitude in Western ... biologists—under the genial supervision of veteran plant pathologist Jim Worrall—are chasing down the causes ...

The ability of aspen to produce whole stands of "trees" vegetatively provides yet ... Why does the petiole develop this way? Plant physiologists have pointed out several consequences of the ...

With spring in full swing, we are getting ready to plant. After months of collecting native seeds and cuttings, and carefully ...