Selaginella arizonica, commonly known as Arizona clubmoss,[1] is a species of spikemoss in the family Selaginellaceae.[2] It is native to Arizona, USA, where it can be found in rock crevices, or on gravel, sandstone, igneous, or limestone substrates.[3]
Selaginella arizonica plants are prostrate, freely branching, and matted. Their stems range from in length with short ultimate branches and tips that turn slightly upwards. When these plants are young, they are bright green. However, as they age, they become greyer in color.[3]