Clubmosses are ancient, non-flowering plants that belong to the group known as lycophytes. They have small, scale-like leaves and reproduce using spores instead of seeds. Clubmosses thrive in moist, shaded environments, often found in forests and woodlands. These plants are important for their role in ecosystems, providing habitat and food for various organisms. Clubmosses are also significant in the study of plant evolution, as they are among the oldest living vascular plants, dating back over 300 million years.