human
Please generate a brief description of a quaking aspen tree growing near a river.
assistant
The long, thick roots of a quaking aspen grow through the loamy soil and dangle down the steep bank to the cold waters of the river below. The tree's broad, spreading crown sports leaves that are deep shiny green with silver undersides, and shiver in the wind, giving the tree its name. In autumn, its foliage takes on brilliant hues of red, orange and yellow.