Aristida schiedeana, commonly known as Single Threeawn, is a perennial grass that exhibits evergreen or semi-deciduous characteristics, depending on the climate. It is native to arid and semi-arid regions, including deserts and scrublands, across the Americas. This grass typically reaches a height and width of approximately 2 feet (0.6 meters), forming dense tufts of narrow, wiry leaves. The inflorescences are distinctive with three awns per spikelet, which can catch the light and add a unique texture to the landscape. Flowering occurs in late summer to fall, and while the flowers are not particularly showy, they provide a subtle beauty and interest.

Single Threeawn is valued for its drought tolerance and ability to thrive in poor, well-drained soils, making it an excellent choice for xeriscaping and naturalistic plantings. It is often used in rock gardens, as a ground cover, or for erosion control on slopes. In cultivation, it requires minimal maintenance, needing only full sun or partial shade and very low to low water once established. There are no major diseases or pests associated with this grass, but it can self-seed and may become invasive if not managed. Gardeners should be aware of its potential to spread when planting it in areas adjacent to natural habitats.CC BY-SA 4.0