Baeothryon A. Dietr.
Trichophorum alpinum (L.) Pers. —Scirpus hudsonianus (Mich.) Fern. Plant forming rather compact mats. Stems trigonous, 10-30 cm tall, surE
rounded by brownish-yellow, scalelike leaf sheaths at base; only upper sheaths with short blade. Spikelet few-flowered. Glumes yellowish-brown, lower longer than spikelet, drawn into obtuse callous tip. Lower 2 glumes sterile. Perianth bristles long (up to 2 cm long), white, flexuous. Nut narE rowly elliptical, flattened-trigonous, brown.