Mojave River/Silver Lake flooding - robatzzyzx
This is that "clump".  A very healthy prickly pear cactus clinging to the underside of the bridge.  I do not recognize this as a native Mojave Desert species, and originally assumed it had washed down from someone's garden along the Mojave River and impaled itself on the bridge during the flood.  Hummm?

This is that "clump". A very healthy prickly pear cactus clinging to the underside of the bridge. I do not recognize this as a native Mojave Desert species, and originally assumed it had washed down from someone's garden along the Mojave River and impaled itself on the bridge during the flood. Hummm?