We just saw how maple tree leaves can exhibit both red and yellow at once. The present photo shows green, yellow and red maple tree leaves on the same tree....
You can even find red maple trees in fall displaying 3 colors: red, green and yellow.
Red maples, as we've seen in this photo gallery, exhibit variation in how they morph into their fall colors. In some cases, the maple tree leaves will change simply from green to red. Others will change to predominantly yellow or -- my personal favorite -- a combination of red and yellow. In this photo, you can see how a given tree may have maple tree leaves in red, green, yellow or some combination thereof -- all at once!