2n = 70

2n = 70

Stout, rather rigid, extravaginal tufts, leaves < stiff, erect culms. Sheaths stramineous to dull brown, with minute, appressed, scattered hairs; ligule 0.3-0.5-(1) mm long, membranous, minutely ciliate across truncate top, scabrous on back, often asymmetric; lamina to 20 cm long, 1.5-2.5 mm wide, rather stiff, flat, tapered towards tip, minutely scabrous on margins and along nerves on adaxial surface towards tip, sparingly minutely scabrous on abaxial surface. Culms 40-100 cm long, minutely scaberulous throughout, or glabrous, but minutely scaberulous below panicle, variously purpled. Panicle 10-25 cm long, erect, spike-like, often purplish, branches spreading at first; rachis, branchlets and pedicels closely short-scabrous; spikelets numerous, close-set on branchlets, rather delicate. Glumes narrow-lanceolate, acute to acuminate, hyaline apart from scaberulous midnerve, often suffused with purple, lower glume 3- 4 mm long, ± = lemma, upper 3.5-5 mm long, > lemma. Lemma 2.5-4 mm long, sometimes purpled; awn 12-18 mm long, very fine, column straight, awn curving above and twisted 2-3 times along whole length, inserted 0.6-0.9 mm below minutely bifid tip. Palea 2-3 mm long, narrowlinear, keels scabrous above, tip ciliate. Callus hairs 0.3-0.5 mm long. Rachilla prolongation c. 0.05 mm long. Lodicules (0.4)-0.6-0.8 mm long, hyaline, elliptic-oblong, unequally bilobed, occasionally minutely ciliate. Anthers 1, 1.2-1.4 mm long in chasmogamous flowers, 0.6-0.8 mm long in cleistogamous flowers. Caryopsis 2.0-2.3 × 0.3- 0.4 mm; embryo 0.2-0.4 mm long; hilum 1.8- 1.9 mm long.

Stout, rather rigid, extravaginal tufts, leaves &lt; stiff, erect culms. Leaf-sheath stramineous to dull brown, with minute, appressed, scattered hairs. Ligule 0.3-0.5-(1) mm, membranous, truncate, minutely ciliate, abaxially scabrid, often asymmetric. Leaf-blade to 20 cm × 1.5-2.5 mm, rather stiff, flat, tapered towards tip, abaxially sparingly minutely scabrid, adaxially scabrid on ribs towards tip, minutely scabrid on margins. Culm 40-100 cm, internodes minutely scaberulous throughout, or glabrous but minutely scaberulous below panicle, variously purplish. Panicle 10-25 cm, erect, spike-like, often purplish, branches spreading at first; rachis, branchlets and pedicels closely short-scabrid. Spikelets numerous, close-set on branchlets, rather delicate. Glumes narrow-lanceolate, acute to acuminate, often suffused with purple; lower 3-4 mm, ≈ lemma, upper 3.5-5 mm, &gt; lemma. Lemma 2.5-4 mm, sometimes purplish; awn 12-18 mm, very fine, column straight, awn curving above and twisted 2-3 times along whole length, inserted 0.6-0.9 mm below minutely bifid lemma-tip. Palea 2-3 mm, narrow-linear, keels scabrid above, tip ciliate. Callus hairs 0.3-0.5 mm. Rachilla prolongation c. 0.05 mm. Lodicules (0.4)-0.6-0.8 mm, hyaline, elliptic-oblong, unequally bilobed, occasionally minutely ciliate. Anthers 1, 1.2-1.4 mm in chasmogamous flowers, 0.6-0.8 mm in cleistogamous flowers. Caryopsis 2.0-2.3 × 0.3-0.4 mm; embryo 0.2-0.4 mm; hilum 1.8-1.9 mm.