Selaginella selaginoides, commonly known as lesser clubmoss, is a non-flowering plant that is part of the Selaginellaceae family. It has a circumboreal distribution, found in a variety of moist habitats including bogs, shores of streams and lakes, wet cliffs, grasslands, and dune slacks. Lesser clubmoss is particularly adapted to cool, mountainous regions in the Northern Hemisphere. This perennial herb typically forms dense mats with its creeping stems and has erect fertile shoots that produce cones bearing both megasporangia and microsporangia, which are involved in reproduction.

Lesser clubmoss is valued for its delicate appearance and is sometimes used in rock gardens or as a ground cover in moist, shaded areas. It requires consistently moist soil and does not tolerate drought well. While it prefers partial to full shade, it can also adapt to brighter conditions if sufficient moisture is present. In cultivation, it is relatively low-maintenance but may need protection from excessive heat or dryness. It is not known to have significant problems with diseases or pests, but habitat destruction has led to declines in some regions.CC BY-SA 4.0