2n = 70

2n = 70

Dark green to grey-green usually slender tufts (12)- 20-110 cm tall; innovations extravaginal. Leafsheaths firmly membranous, obviously nerved, smooth, or rarely scabrous near ligule, brownish, sometimes purplish; ligule 0.5-4.5 mm, truncate or tapered, ciliate across top and abaxially; leaf-blades (2)-4-15-(24) cm, inrolled and 0.3-1.5 mm diam., abaxially smooth, very rarely scabrous, adaxially scabrous, margins scabrous, tip acute, scabrous. Culms (7.5)-15-75 cm tall, varying in diameter, usually 0.3-0.5 mm diam. in plants with cleistogamous flowers and 0.8-2.5-(3) mm diam. in plants with chasmogamous flowers, erect or curved upwards from decumbent base, smooth. Panicle (1)- 3.5-20-(28) cm × 1.5-17 mm, erect or ± nodding, shining, lanceolate, cylindric above, narrowly branched, the lower branchlets ± distant, with spikelets densely crowded throughout branches; rachis smooth, branchlets and pedicels sparsely scaberulous. Spikelets 3-7 mm, 1-(2)-flowered, light green to purplish green. Glumes 1-nerved, lanceolate, acute to acuminate, smooth, but midnerve minutely scabrous in upper 2/3. Lemma 2.8-5.3 mm, slightly < glumes, firmly membranous, minutely scabrous-papillose, narrow elliptic-lanceolate, involute, acute or occasionally finely bifid; awn 4.5- 8.5 mm, from lower 1/3 of lemma and overtopping glumes. Palea ± = lemma, keels scabrous in upper 2/3, tip acute to subacute. Callus hairs few, to c. 1 mm, 1/5-1/3 length of lemma or shorter. Lodicules 0.5- 1 mm, ovate-lanceolate, subacute. Rachilla (0.5)- 0.8-1.5-(2) mm, tipped by an almost equally long, slender tuft of fine hairs reaching to 2/3 length of lemma. Anthers 0.2-0.7-(1.2) mm in cleistogamous flowers, (0.5)-0.8-1.4-(2) mm in chasmogamous flowers. Caryopsis 1.5-2.3 × 0.4-0.9 mm. Endemic.

Dark green to grey-green usually slender tufts, (12)-20-110 cm; branching extravaginal. Leaf-sheath firmly membranous, obviously ribbed, smooth, or rarely scabrid near ligule, brownish, sometimes purplish. Ligule 0.5-4.5 mm, truncate or tapered, ciliate, abaxially with very minute hairs. Leaf-blade (2)-4-15-(24) cm × 0.3-1.5 mm diam., inrolled, abaxially smooth, very rarely scabrid, adaxially scabrid, margins scabrid, tip acute, scabrid. Culm (7.5)-15-75 cm, varying in diameter, usually 0.3-0.5 mm diam. in plants with cleistogamous flowers and 0.8-2.5-(3) mm diam. in plants with chasmogamous flowers, erect or curved upwards from decumbent base, internodes glabrous. Panicle (1)-3.5-20-(28) cm × 1.5-17 mm, erect or ± nodding, shining, lanceolate, cylindric above, narrowly branched with spikelets densely crowded throughout, lower branches ± distant; rachis smooth, branches and pedicels sparsely scaberulous. Spikelets 3-7 mm, 1-(2)-flowered, light green to purplish green. Glumes 1-nerved, lanceolate, acute to acuminate, smooth, midnerve minutely scabrid in upper ⅔. Lemma 2.8-5.3 mm, ≈ glumes, firmly membranous, minutely scabrid-papillose, narrow elliptic-lanceolate, involute, apex acute or occasionally finely bifid; awn 4.5-8.5 mm, from lower ⅓ of lemma and overtopping glumes. Palea ≈ lemma, keels scabrid in upper ⅔, tip acute to subacute. Callus hairs few, to c. 1 mm, ⅕-⅓ length of lemma or shorter. Rachilla prolongation (0.5)-0.8-1.5-(2) mm, tipped by an almost equally long, slender tuft of fine hairs reaching to ⅔ length of lemma. Lodicules 0.5-1 mm, ovate-lanceolate, subacute. Anthers 0.2-0.7-(1.2) mm in cleistogamous flowers, (0.5)-0.8-1.4-(2) mm in chasmogamous flowers. Caryopsis 1.5-2.3 × 0.4-0.9 mm.