2n = 28

2n = 28

Usually slender perennial tufts, c. 20-50 cm tall, occasionally stoloniferous, with brownish-green leaves much overtopped by erect culms; new shoots extravaginal; laminae persistent. Sheaths often reddish- purple, later grey-brown, submembranous, smooth or rarely slightly scabrous, nerves conspicuous; ligule 1-4 mm long, entire, smooth across tapered top, smooth to finely ciliate-scabrous abaxially; lamina (3.5)-7.5-20cm long, c. 1-3 mm wide, subcoriaceous, often flat, scabrous adaxially just above ligule and for some distance above along nerves, abaxially smooth or scabrous along nerves, margins finely scabrous with a few longer cilia just above ligule, midrib scabrous near curved tip. Culms (10)-15-35-(65)cm tall, smooth or occasionally finely scabrous below panicle. Panicle 5- 10-( 15) cm long, loosely spreading, with relatively large spikelets at tips of fine, smooth to scabrous branchlets. Spikelets 3-6.5 mm long, (2)-3-4-(6)- flowered, light green, often purplish. Glumes + equal, usually purplish, midnerve usually finely toothed near subacute to acute tip, margins entire or finely ciliate near tip; lower glume 1.5-4 mm long, 1 -3-nerved, narrow elliptic-lanceolate, upper 2-5 mm long, 3-nerved, elliptic-ovate. Lemma (1.5)-2-5mm long, 5-(7)-nerved, ± ovate to oblong, obtuse to almost truncate at hyaline, usually purplish tip, nerves finely scabrous throughout or only in upper or lower part; in North I plants lower 1/3 to ½ of mid-nerve and lower ¼ of outer lateral nerves with short hairs, internerves glabrous and smooth; in plants from South and Stewart Is nerves usually glabrous, rarely with a few wispy hairs on midnerve, internerves glabrous and smooth or usually minutely ± sparsely scabrous. Palea 1.5- 4 mm long, smooth to shortly ciliate between ciliate- dentate keels. Lodicules 0.3-0.6 mm long, rarely hair-tipped. Callus glabrous, occasionally with few wispy hairs. Rachilla 0.5-1 mm long, smooth, projection twice as long. Anthers 0.6-1-(1.2) mm long. Caryopsis 1-1.5 × c. 0.5 mm. 2n = 28. Endemic

Usually slender perennial tufts, c. 20-50 cm, occasionally stoloniferous, with brownish green leaves much overtopped by erect culms; branching extravaginal; leaf-blades persistent. Leaf-sheath often reddish purple, later grey-brown, submembranous, smooth or rarely slightly scabrid, ribs conspicuous. Ligule 1-4 mm, apically glabrous, entire, tapered, abaxially glabrous to finely pubescent-scabrid. Leaf-blade (3.5)-7.5-20 cm ×c. 1-3 mm, subcoriaceous, often flat, abaxially smooth, or scabrid on ribs, adaxially scabrid just above ligule and on ribs for some distance; margins finely scabrid with a few hairs just above ligule, midrib scabrid near curved tip. Culm (10)-15-35-(65) cm, internodes smooth or occasionally finely scabrid below panicle. Panicle 5-10-(15) cm, loosely spreading, with rather large spikelets at tips of fine, smooth to scabrid branches. Spikelets 3-6.5 mm, (2)-3-4-(6)-flowered, light green, often purplish. Glumes ± equal, usually purplish, subacute to acute, midnerve usually finely prickle-toothed near tip; lower 1.5-4 mm, 1-3-nerved, narrow elliptic-lanceolate, upper 2-5 mm, 3-nerved, elliptic-ovate; margins entire or finely ciliate near tip. Lemma (1.5)-2-5 mm, 5-(7)-nerved, ± ovate to oblong, obtuse to almost truncate, tip hyaline, usually purplish, nerves finely scabrid throughout or only in upper or lower part; in North Id plants lower ⅓ to ½ of midnerve and lower ¼ of outer lateral nerves with short hairs, internerves glabrous; in plants from South and Stewart Is nerves usually glabrous, rarely with a few wispy hairs on midnerve, internerves usually minutely ± sparsely scabrid, or smooth. Palea 1.5-4 mm, keels ciliate-scabrid, interkeel glabrous to shortly pubescent. Callus glabrous, occasionally with a few wispy hairs. Rachilla 0.5-1 mm, glabrous; prolongation twice as long. Lodicules 0.3-0.6 mm, rarely hair-tipped. Anthers 0.6-1-(1.2) mm. Caryopsis 1-1.5 ×c. 0.5 mm. 2n= 28.