2n = 56

2n = 56

2n = 56

Variable, rather slender to robust, dense or lax tufts, 15-125 cm tall, with culms erect or curved upwards from base, much overtopping leaves; innovations extravaginal. Leaf-sheaths subcoriaceous, keeled above, distinctly nerved, smooth or finely scabrous or rarely short-ciliate on nerves, greenish brown; ligule 1.5—3.5—(6) mm, oblong, truncate, erose or finely ciliate across top, abaxially smooth; leafblades 2.5-15-(20) cm × 0.5-3.5-(6) mm, flat or inrolled, abaxially smooth or finely scabrous on nerves, adaxially strongly ribbed, margins finely scabrous, tip long-tapered, acute to acuminate, finely scabrous. Culms (10)—15—105 cm tall, smooth or faintly scabrous. Panicle 3-25-(35) × 0.4-2 cm, narrow-linear, cylindric, or up to 3.5 cm wide and lobed below; rachis smooth to scaberulous, branchlets finely scabrous, usually ± appressed to rachis or slightly spreading in larger panicles, densely covered with spikelets almost to base, pedicels scabrous. Spikelets (3)-3.5-4-(5) mm, greenish to purplish. Glumes 1-nerved, hyaline, elliptic-lanceolate, acute or acuminate, scabrous on midnerve and sometimes elsewhere, margins scaberulous. Lemma 2-3.5-(4) mm, c. ¾ length of glumes, submembranous to firm, smooth and shining below, and finely scabrous near tip, or lightly scabrous to distinctly scabrous-papillose throughout, narrow-lanceolate, tip denticulate with lateral nerves excurrent as 4 minute awns; central awn 1.6-6 mm, geniculate, usually arising from lower 1/3 of lemma, often sub-basal, occasionally almost mid-dorsal, ± enclosed by glumes or projecting beyond glumes. Palea slightly < lemma, hyaline, keels faintly scabrous in upper ½. Callus hairs wispy, 0.4-1 mm, c. 1/3 length of lemma. Lodicules c. 0.3 mm, linear, obtuse. Rachilla 0, or 0.05-0.3 mm, including hairs if any. Anthers 0.3-1.3-(l.8) mm. Caryopsis 1.5-2 × 0.4-0.7 mm. Also indigenous to Australia.

Variable, rather slender to robust, dense or lax tufts, 15-125 cm, with culms erect or curved upwards from base, much overtopping leaves; branching extravaginal. Leaf-sheath subcoriaceous, greenish brown, keeled above, distinctly ribbed, smooth or finely scabrid, or ribs rarely short-ciliate. Ligule 1.5-3.5-(6) mm, oblong, truncate, erose or finely ciliate, abaxially glabrous. Leaf-blade 2.5-15-(20) cm × 0.5-3.5-(6) mm, flat or inrolled, abaxially smooth or ribs finely scabrid, adaxially strongly ribbed, margins finely scabrid, tip long-tapered, acute to acuminate, finely scabrid. Culm (10)-15-105 cm, internodes smooth or faintly scabrid. Panicle 3-25-(35) × 0.4-2 cm, narrow-linear, cylindric, or up to 3.5 cm wide and lobed below; rachis smooth to scaberulous, branches finely scabrid, usually ± appressed to rachis or slightly spreading in larger panicles, densely covered with spikelets almost to base, pedicels scabrid. Spikelets (3)-3.5-4-(5) mm, greenish to purplish. Glumes 1-nerved, hyaline, elliptic-lanceolate, acute or acuminate, smooth or sometimes scabrid, midnerve scabrid, margins scaberulous. Lemma 2-3.5-(4) mm, c. ¾ length of glumes, submembranous to firm, smooth and shining below, and finely scabrid near apex, or lightly scabrid to distinctly scabrid-papillose throughout, narrow-lanceolate, apex denticulate with lateral nerves excurrent as 4 minute awns; central awn 1.6-6 mm, geniculate, usually arising from lower ⅓ of lemma, often subbasal, occasionally almost middorsal, ± enclosed within or projecting beyond glumes. Palea ˜ lemma, hyaline, keels faintly scabrid in upper ½. Callus hairs wispy, 0.4-1 mm, c. ⅓ length of lemma. Rachilla prolongation 0, or 0.05-0.3 mm, including hairs if any. Lodicules c. 0.3 mm, linear, obtuse. Anthers 0.3-1.3-(1.8) mm. Caryopsis 1.5-2 × 0.4-0.7 mm.