[Selaginellas and Spikemoss: The Genus Selaginella West of the Cascade Mountains of Oregon and Washington]

What appears to be Wallace's spikemoss growing over rocks on Saddle Mountain in the Coast Range of northwestern Oregon.......May 21, 2009. Oregon spikemoss also grows at this location but tends to grow on trees while Wallace's spikemoss tends to be terrestrial.

Wallace's spikemoss growing on rocks atop the west side of Upper Table Rock, northwest of Medford, Oregon.........April 28, 2012.

Wallace's spikemoss on a basalt rock cliff at the east side of Nob Hill Park in St. Helens, OR.........April 3, 2016.