Riddell's Spike-moss (Selaginella Corallina) is a perennial fern in the Selaginellaceae family with moderate care difficulty. It requires moderate watering and partial shade or full shade light in USDA hardiness zones 8-11. This plant is safe for cats and dogs. It can be grown indoors.

Selaginella corallina is a primitive vascular plant, often included with fern-allies, with an erect habit resembling branched coral.