Plants tufted. Roots fibrous-fleshy to narrowly tuberous. Leaves linear, flat to somewhat folded, ascending, drooping at tips, to c. 40 cm long, 1–8 mm wide. Inflorescence erect, 10–75 cm tall, axis 1–several-branched, with leafy bracts. Flowers clustered in bract axils, 5–15 mm wide, greenish-white to blue; perianth segments spreading, longer than stamens. Capsule to 5 mm wide. Seed 1.3–2.3 mm diam.
