I planted the very smallest bit of Artemisia douglasiana (California Mugwort)on this slope adjaent to my driveway earlier this year. It's gone crazy. Here it is towering over the two year old Cercis occidentalis (Western Redbud) and the Agapanthus (slated for removal). Mexican sage in the background.
The brown flowers in this photo are all A. douglaisiana.
One thing that I selected for among the available ones at the CNPS plant sale was the deeply lobed leaf that I preferred. I raised the unanswered question some time ago about why some Artemesia develop a deeply lobed leaf and some do not. The best answer was, "It's variable". The ones in this photo mostly have it and it looks like it's older growth that develops the lobes. Smoother edged leaves appear less worn and therefore I assume they are younger.