Carex laeviculmis, commonly known as Smoothstem Sedge, Smooth Sedge, or Smooth-Stemmed Sedge, is a perennial herbaceous plant native from Alaska to California. It typically grows at a moderate rate to a height and width of 1-2 feet (0.3-0.6 meters), forming dense clumps of narrow, grass-like leaves. The green, inconspicuous flowers appear in the spring, followed by small, brown seed capsules that may provide visual interest. Smoothstem Sedge is valued for its ability to thrive in wet conditions and is often used in rain gardens, water features, and as a ground cover in moist, shaded areas.

Smoothstem Sedge is appreciated for its ease of maintenance and its utility in controlling soil erosion in wetland settings. It is adaptable to a range of soil types, including clay, loam, and sandy soils, but requires consistent moisture to flourish. It can tolerate both full sun and part shade, making it versatile for various garden designs. While it is not known for significant pest or disease problems, it can spread readily in ideal conditions, which should be considered when planting.CC BY-SA 4.0