Juncus textilis is a species of rush known by the common name basket rush. It is endemic to California, where it grows along the coast and in the coastal mountain ranges of the southern half of the state. This is a rhizomatous perennial herb growing to a maximum height between one and two meters. The stems are cylindrical with faint longitudinal grooves. The leaves lack blades and appear as small brown sheaths around the base of the stems. The long, bushy flower cluster arises from the side of the stem and splits into long branches bearing clusters of many flowers. Each flower is cupped by small, clear leaflets and has pointed greenish brown petals. There are six stamens with large anthers. The fruit is a dark brown, shiny capsule.

This species of rush has been used historically for basket weaving by several Native American peoples of southern California, such as the Cahuilla, Kumeyaay, and Chumash, among others. Juncus textilis is an important plant endemic to California; Chumash people use it today for basket-making as they have been for centuries. The rush is valued for its varied colors, from deep red to sun-dried tan; the stems may be dyed black with sea plants such as Suaeda species and yellow with Psorothamnus emoryi.