Juncus radula

Tufted perennial with horizontal or ascending rhizomes. Cataphylls tight or loose, pale to medium brown or pale pinkish-brown towards the base, to c. 13 cm long. Culms erect, ± minutely scabrous, dull green to blue-green, 20–60 cm high and 0.5–2.3 mm diam.; striations 12–30, strongly raised and easily counted; pith continuous and cobwebby; stomates superficial. Inflorescence open, flowers evenly scattered (rarely congested) on erect or slightly curved, minutely scabrous branches; primary bract minutely scabrous, continuous with culm, to c. 30 cm long; prophylls present. Tepals ± minutely scabrous on the green or brown tinged midrib, margins translucent or tinged brown, later becoming stamineous, (3.0–)3.3–4.5 mm long; stamens 6 (rarely 3), anthers 0.6–1.0 mm long. Capsules stramineous, with a ± darker obtuse apex, shorter than, equal to, or rarely longer than the tepals, 2.5–4.0 mm long. Flowers mostly Oct.–Dec., seeds shed mostly Nov.–Feb.