Selaginella erythropus, commonly known as Red Spikemoss, is an evergreen perennial herb native to the tropical rainforests of Central and South America. It typically grows to a height of 1 foot and a width of 0.3-0.6 feet. This species is characterized by its striking foliage, with the topside of the leaves being a vibrant green and the undersides displaying a bright, ruby red color. Red Spikemoss is a member of the Selaginellaceae family and, like ferns, reproduces via spores.

Red Spikemoss is valued for its unique foliage and is often used in terrariums, as a ground cover in shaded gardens, or in hanging baskets. It thrives in humid conditions and requires consistently moist soil, making it a suitable choice for areas with high rainfall or for gardeners who can provide regular watering. It prefers part shade but can tolerate full sun in cooler, moist climates. While it is relatively low-maintenance, it can suffer from root rot if overwatered or if the soil does not drain well. It is also sensitive to cold and must be protected from frost.CC BY-SA 4.0