Juncus phaeocephalus, commonly known as brown-headed rush, is a perennial herb that is part of the rush family. It is native to the coastal wetlands, including moist seeps, sand dunes, marshes, and sloughs along the Pacific Coast from California to Oregon. Inland, it can be found in wet grassy meadows, and along lakes and streams, often in brackish environments. This species typically grows up to 1.5 feet tall and features stout, creeping rhizomes with flattened, grass-like stems. The inflorescences are distinctive with their brown, spherical flower clusters that appear in the summer months. While not showy in the traditional sense, the flowers have a unique, subtle appeal.

Brown-headed rush is valued for its ability to stabilize soil in wetland restoration projects and is often used in native plant gardens for its ecological benefits. It is also appreciated for its low maintenance requirements and adaptability to wet, poorly drained soils. In cultivation, it requires consistent moisture and can tolerate full sun to part shade conditions. However, gardeners should be aware of its potential to spread in ideal conditions and manage it accordingly. It is not commonly used for ornamental purposes due to its modest appearance and the presence of hydrocyanic acid in its seeds, which can be toxic to livestock if ingested in large quantities.CC BY-SA 4.0