Eleocharis acicularis, commonly known as dwarf hairgrass, is a species of aquatic perennial herbaceous plant belonging to the family Cyperaceae. It is native to North America, Europe, and Asia, and is primarily found in marshes, bogs, and on the edges of wetlands.
Dwarf hairgrass is a small, delicate plant with thin, thread-like leaves that resemble tufts of grass. It typically grows to a height of 2-8 centimeters, forming dense mats or carpets in the water. The plant has a creeping growth habit, spreading through the production of runners, or stolons, allowing it to colonize new areas quickly.
This aquatic plant is highly adaptable to various water conditions, making it a popular choice for aquariums and aquascaping. Under optimal conditions, dwarf hairgrass will produce tiny white flowers, but this is relatively rare in an aquarium setting.
In aquariums, dwarf hairgrass is valued for its aesthetic qualities, as it provides a lush, vibrant green carpet-like appearance. It is a favorite among aquarists who aim to create a natural, tranquil aquascape. To thrive, dwarf hairgrass requires bright lighting to support photosynthesis, carbon dioxide supplementation, and a nutrient-rich substrate. Regular trimming of the plant is also necessary to prevent it from growing too tall and overshadowing other plants.
Outside of its ornamental use, Eleocharis acicularis is also ecologically significant. It provides important habitat and food sources for various aquatic organisms, including fish and invertebrates. In the wild, it helps stabilize soil and prevent erosion along water bodies.
