Dichanthelium scabriusculum, commonly known as woolly witchgrass, is a perennial grass species native to North America. This plant is a member of the grass family, Poaceae, and is characterized by its distinctive hairy or woolly structures, particularly on its inflorescence and leaf sheaths. Woolly witchgrass plays a role in its native ecosystems, contributing to the biodiversity of grasslands and open woodlands. Physically, Dichanthelium scabriusculum typically grows in erect or somewhat spreading clumps, reaching heights that can range from 30 to 100 centimeters. Its growth habit is caespitose, meaning it forms dense tufts. The leaves are generally flat, linear to lanceolate in shape, and can be rough to the touch, contributing to the "scabriusculum" part of its scientific name, which implies a somewhat rough surface. The leaf sheaths are often notably pubescent, covered in soft hairs, which gives the common name "woolly" its basis. The inflorescence is a panicle, which can be open or somewhat contracted, bearing numerous small spikelets. These spikelets are typically ovate and may have a purplish tinge. The flowering period usually occurs during the summer and fall months. The fruit is a caryopsis, a type of dry, single-seeded fruit characteristic of grasses. The native range of Dichanthelium scabriusculum extends across a significant portion of eastern and central North America, including parts of the United States and Canada. It thrives in a variety of open habitats, commonly found in dry to mesic prairies, savannas, open woodlands, sandy areas, and disturbed sites. It prefers well-drained soils and can tolerate a range of soil types, though it often favors sandy or loamy substrates. Cultivation requirements are generally minimal for this adaptable native grass; it prefers full sun to partial shade and is drought-tolerant once established. Its resilience makes it suitable for naturalistic plantings and restoration projects in its native regions. While not widely cultivated for ornamental purposes, Dichanthelium scabriusculum holds ecological significance as a component of native plant communities. It provides habitat and forage for various wildlife, including insects and small mammals. Its seeds can be a food source for birds. As a native grass, it contributes to soil stabilization and helps maintain the health of grassland ecosystems. There is no established record of significant agricultural, medicinal, or culinary use for this species. An interesting characteristic of Dichanthelium scabriusculum is its adaptation to varying environmental conditions. Like other species in the Dichanthelium genus, it may exhibit dimorphic inflorescences, with a more open, branched panicle produced during the primary growing season and a more compact, sometimes cleistogamous (self-pollinating within closed flowers) inflorescence appearing later. This reproductive strategy can enhance its ability to set seed under different conditions. The presence of dense pubescence on its vegetative parts and inflorescence is a notable feature that distinguishes it and likely serves functions such as deterring herbivores or reducing water loss.