This photo shows the wooden post's which are seen throughout the park, each with a number relating to a passage in the Desert Woodland Trail Guide. Post #12 would read:

"The large groups of green plants near the post having thin steins and apparently no leaves are Mormon tea (Ephedra nevadensis).

 In the spring they do have insignificant leaves. The male plant will have orange stamen-like growths from the nodules while . the female plant will produce small green cones.