The third (maybe fourth if you count the Giant Goldenrod) goldenrod I have found in our area. This one, the Rocky Mountain Goldenrod, I discovered at North Sterling Reservoir. It was near some Missouri Goldenrod, which are the same size, so I may have overlooked them before. These plants are just off the figure-eight walking path at Sunset Point. They look very much like the Missouri Goldenrod except that their leaves are much larger and broader, as best seen in the second picture.