Watson's Spikemoss (Selaginella Watsonii) is a perennial fern in the Selaginellaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 4-8. This plant is safe for cats and dogs.

Selaginella watsonii is a lycophyte native to western North America, known for forming dense mats on rocky substrates, especially in alpine and mountainous regions.