Dichanthelium tenue, commonly known as White-edged Witchgrass, is a slender annual grass native to eastern North America. This species is a member of the large grass family Poaceae, distinguished by its delicate structure and specific habitat preferences. While not widely cultivated, it plays a role in its native ecosystems as a component of grassland and open woodland communities. Physically, Dichanthelium tenue is characterized by its erect, slender culms that typically reach heights of 30 to 70 centimeters. The leaves are narrow and linear, often less than 5 millimeters wide, and may have a distinctive whitish or pale margin, which gives rise to its common name. The leaf sheaths are smooth, and the ligules are short and membranous. The inflorescence is a narrow, open panicle, usually less than 15 centimeters long, bearing small spikelets. The spikelets are typically ovate and measure around 1.5 to 2 millimeters in length. The glumes are usually shorter than the lemma, and the lemmas are smooth. The caryopses, or grains, are small and ovoid. The native range of Dichanthelium tenue extends across the eastern United States, from the Atlantic coast inland to the Midwest. It thrives in sandy or loamy soils, often found in dry, open habitats such as pine barrens, sandy prairies, roadsides, and the edges of woodlands. It prefers full sun to partial shade and is well-adapted to well-drained soils. Its specific ecological niche often involves areas with low competition from more robust vegetation. Ecologically, Dichanthelium tenue serves as a food source for various insects and small animals. Its seeds contribute to the diet of granivorous birds. As an annual, its life cycle is completed within a single growing season, from germination to seed production, contributing to the dynamic nature of its habitat. While it has no widely recognized ornamental, agricultural, medicinal, or culinary uses, its presence is indicative of specific soil and light conditions, making it a useful indicator species for certain natural areas. An interesting characteristic of Dichanthelium tenue is its adaptation to nutrient-poor, well-drained soils, where its slender form allows it to compete effectively. The subtle white edging on its leaves, though not always prominent, is a key feature for identification, distinguishing it from other closely related species within the Dichanthelium genus. Its annual life cycle also means it relies on seed production for propagation, often colonizing disturbed areas with suitable conditions.