Plant perennial, laxly tufted. Culms 25-50 cm tall with 3 internodes elongating. Cataphylls 2-3 at base up to 5 cm long. Leaf sheath 4-20 cm long, glabrous, more or less striated. Ligule about 5 mm long, rounded above, membranous. Collar distinct, somewhat pulvinate. Leaf blade 7-30 cm long 4-8 mm wide, tapering, more or less strict, subconvolute, subcoriaceous, glabrous, adaxial surface deeply striate, ridges flat-topped. Vascular bundles about 25, fairly uniform. Sclerenchyma rather strongly developed, discontinuous, connected to bundles, T-shaped under the ridges. Peduncles often shorter than subtending sheath. Panicle 5-10 cm long, scarcely spreading, rather dense, somewhat nodding, glabrous. Branches mostly geminate, at lowest 2 or 3 nodes subtended by lanceolate bracts. Pedicels very short to 5 mm long, scabrid to pilose above. Glumes subequal, upper 12-14 mm long, ovate lanceolate, acute, keeled, membranous, almost entirely scarious, 3-nerved, middle nerve percurrent, lateral 2-3 mm long. Florets included within glumes, light brown at maturity. Male florets about 7 mm long, ovate-oblong, erose and scarious tipped, appressed pilose above along the back and callus, margins thinly ciliate. Awns about 6 mm long, slender more or less straight exserted from about 3 mm below apex. Lodicules about 1 mm long, ovatelanceolate, irregularly 1-2 lobed. Anthers about 3 mm long. Bisexual floret lemma about 5 mm long, broad ovate, appressed pubescent at apex, glabrous below. Mucro about 1 mm long, slender, subapical. Palea about equalling lemma, ovate oblong.

Plant perennial, more or less robust, laxly tufted. Culms 30-60 cm tall, with 3-4 internodes elongating, glabrous. 2-3 cataphylls present at base, up to 5 cm or more long. Leaf sheath 5-20 cm long, more or less striated, glabrous. Ligule 1-2 mm long, chartaceous. scarious. Collar distinct, somewhat pulvinate. Leaf blade 20-40 cm long, 6-12 mm wide, flat, tapering glabrous on abaxial side, finely scabrid on rounded ridges on adaxial side. Vascular bundles about 30. fairly uniform. Sclerenchyma discontinuous, bilateral, connected to bundles, somewhat dilated under the ridges. Peduncles much longer than uppermost sheath. Panicles 10-20 cm long lax, spreading, glabrous. Branches 1-2 at each node, bare below, glabrous, more or less slender often drooping. Spikelets few towards ends of branches. Pedicels very short to 10 mm long scabrid to villous above. Glumes subequal, upper about 7.5 mm long, ovate, acute, membranous, scarious, glabrous, 3-nerved, middle nerve percurrent, lateral about 2 mm long. Rachilla very short, sinuous, glabrous. Florets included within glumes, more or less glistening coppery at maturity. Male florets lemmas about 6 mm long, erose and scarious tipped, scabrid, long ciliate margins with brown cilia, villous along back and callus. Awns slender more or less straight, 3-6 mm long, exserted from about 1.5 mm below apex. Paleas about as long as lemmas, wide, membranous, ciliate on keels. Lodicules about 1 mm long, more or less ovate, acute, irregularly 1-, 2-lobed. Anthers about 2 mm long. Female floret about 3.5 mm long, ovate, smooth and shiny below tip, tip scabrous and with broad patch of long brown hairs. Mucro slender, subapical, about as long as hairs. Palea about equalling lemma, ovate, lanceolate.

Planta perennis, plus minusve robusta, laxe caespitosa. Rhizomata brevia, supra solum emergentia nullis factis ramis. Culmi 30-60 cm alti, cum internodiis 3-4 elongantibus, glabri, cataphylla 2-3, ad 5 cm vel plus longa ad basim gerentes. Folii vagina 5-20 cm longa, plus minusve striata, glabra. Ligula 1-2 mm longa, chartacea, scariosa. Collum distinctum, aliquantum pulvinatum. Lamina 20-40 cm longa, 6-12 mm lata, plana, angustata, in abaxiali pagina glabra, in adaxiali pagina subtiliter scabrida in rotundatis jugis. Fasciculi vasculares circa 30, satis uniformes. Sclerenchyma interruptum, bilaterale, ad fasciculos junctum, aliquantum sub jugis dilatatum. Pedunculi vaginam supremam multo superantes. Paniculae 10-20 cm longae, laxae, effusae, glabrae. Rami 1-2 in quoque nodo, infra nudi, glabri, plus minusve graciles, saepe demissi. Spiculae paucae ad apices ramorum. Pedicelli brevissimi vel ad 10 cm longi, scabridi vel supra villosi. Glumae subaequales, superior circa 7.5 mm longa, ovata, acuta, membranacea, scariosa, glabra, 3-nervis, nervus medius percurrens, nervus lateralis circa 2 mm longus. Rachilla brevissima, sinuosa, glabra. Flosculi intra glumas inclusi, plus minusve nitidi cuprei ad maturitatem. Lemmata flosculorum masculorum circa 6 mm longa, erosa, ad apicem scariosa, scabrida, marginibus longe ciliatis ciliis brunneis, tergum secus et in callo villosa. Aristae graciles plus minusve rectae, 3-6 mm longae, circa 1.5 mm infra apicem exsertae. Paleae plus minusve lemmata aequantes, latae, membranaceae, in carinis ciliatae. Lodiculae circa 1 mm longae, plus minusve ovatae. acutae, irregulariter 1-2-lobatae. Antherae circa 2 mm longae. Flosculus femineus circa 3.5 mm longus, ovatus, infra apicem laevis nitidusque; apex scabridus pilis longis brunneis late cristatus. Mucro gracilis, subapicalis, pilos plus minusve aequans. Palea lemma plus minusve aequans, ovata, lanceolata.

Plant perennial, fairly robust, laxly tufted. Culms 30-60 cm tall with 1-4 elongated internodes. 2-3 cataphylls present at base, up to 5 cm long. Leaf sheath 5-20 cm long, glabrous, more or less striated, mostly deep purple. Ligule about 0.5 mm long, rather thick. Collar distinct more or less pulvinate. Leaf blade 15-30 cm long, 4-8 mm wide, tapering, glabrous on abaxial surface, pubescent and deeply striated on adaxial, ridges flat topped. Vascular bundles about 15, fairly uniform. Sclerenchyma discontinuous, bilateral, connected to bundles, somewhat dilated under the ridges. Peduncles longer than uppermost sheath. Panicles 8-15 cm long, very lax, spreading, glabrous. Branches mostly two at each node, bare below, long, slender, drooping. Spikelets few towards ends of branches. Pedicels very short to 10 mm long, scabrid to villous above. Glumes subequal, upper about 7.5 mm long, ovate, subacute, membranous, with wide scarious margins above, more or less glabrous, 3-nerved, middle nerve percurrent, lateral about 0.6 as long. Rachilla very short, sinuous, glabrous. Florets longer than lower glume, male light brown to brown, female paler, often golden and glistening at maturity. Male florets lemmas about 6 mm long, oblong subacute, deeply 2-cleft, scabrid long ciliate margins with brown cilia, villous on back below and callus. Awns of the two florets about equal, about 6 mm long, rather stout, twisted below, exserted from about 2 mm above base of lemmas. Paleas about as long as lemmas, wide membranous finely ciliate on keels. Lodicules about 1 mm long more or less ovate, acute, irregularly 1-2 lobed. Anthers about 2.5 mm long. Female floret about 5 mm long, ovate, smooth and shiny, finely scabrous and with long golden-brown hairs at the tip, muticous or minutely mucronate subapically. Pake about equalling lemma, ovate-lanceolate.

Planta perennis, moderate robusta, laxe caespitosa. Culmi 30-60 cm alti cum internodiis 3-4 elongatis, cataphylla 2-3 ad 5 cm longa ad basim gerentes. Folii vagina 5-20 cm longa, glabra, plus minusve striata, plerumque atropurpurea. Ligula circa 0.5 mm longa, crassiuscula. Collum distinctum plus minusve pulvinatum. Lamina 15-30 cm longa, 4—8 mm lata, angustata, in abaxiali pagina glabra, in adaxiali pagina pubescens at alte striata; juga plana supra. Fasciculi vasculares circa 15, satis uniformes. Sclerenchyma interruptum, bilaterale, ad fasciculos junctum, aliquantum sub jugis dilatatum. Pedunculi vaginas supremas superantes. Paniculae 8-15 cm longae, laxissimae, effusae, glabrae. Rami plerumque 2 in quoque nodo, infra nudi, longi, graciles, demissi. Spiculae paucae ad apices ramorum. Pedicelli brevissimi ad 10 mm longi, scabridi vel supra villosi. Glumae subaequales, superior circa 7.5 mm longa, ovata, subacuta, membranacea, supra marginibus latis scariosis, plus minusve glabra, 3-nervis, medius nervus percurrens, lateralis nervus medio circa tertia parte brevior. Rachilla brevissima, sinuosa, glabra. Flosculi glumam inferiorem superantes; masculi pallide brunnei vel brunnei, feminei pallidiores, saepe aurei et ad maturitatem lucentes. Lemmata nosculorum masculorum circa 6 mm longa, oblonga, subacuta, alte bifida, marginibus scabridis longe-ciliatis, ciliis brunneis, in tergo infra et in callo villosa. Aristae duorum nosculorum subaequales, circa 6 mm longae, robustiores, infra contortae, circa 2 mm supra lemmatis basin exsertae. Paleae plus minusve lemmata aequantes, latae, membranaceae, subtiliter ciliatae in carinis. Lodiculae circa 1 mm longae, plus minusve ovatae, acutae, irregulariter 1-2-lobatae. Antherae circa 2.5 mm longae. Flosculus femineus circa 5 mm longus, ovatus, laevis nitidusque, subtiliter scabridus et pilis longis fulvis ad apicem indutus, subapicale muticus vel minute mucronatus. Palea lemma plus minusve aequans, ovato-lanceolata.

Plant perennial, robust, laxly tufted. Culms 60-120 cm tall with 4-5 elongated internodes. 2-3 cataphylls present at base, up to 5 cm and more long. Leaf sheath 5-25 cm long, glabrous, more or less striated. Ligule 3-5 mm long, more or less chartaceous, scarious, erose to variously lobed. Collar distinct, somewhat pulvinate. Leaf blade 30-75 cm long, 8-12 mm wide, flat tapering, glabrous on adaxial surface, scabrid and deeply striated on adaxial. Vascular bundles up to about 40, fairly uniform. Sclerenchyma discontinuous, bilateral, connected to bundles, forming T strands under flat adaxial ridges. Peduncles scarcely to distinctly longer than uppermost sheaths. Panicles 15-30 cm long, more or less erect, glabrous. Branches 1-2 at each node, bare below, glabrous. Spikelets densely crowded along upper parts of branches. Pedicels mostly less than 1 mm long, scabrid to villous. Glumes subequal, upper about 9 mm long, more or less membranous, with wide scarious margin and tip, glabrous, keeled, ovate-lanceolate, acute, 3-nerved, middle nerve as long as glume, lateral about 3 mm long or shorter. Rachilla very short, sinuous, glabrous. Florets included within glumes, brown to dark brown at maturity. Male florets lemmas about 7 mm long, oblong-ovate, erose and scarious tipped, scabrid, long ciliate margins, with fine pale cilia, villous at base and callus. Awns slender, more or less straight, 5-7 mm long, inserted 1-2 mm below apex. Paleas as long as lemmas, wide membranous, ciliate on keels. Lodicules about 1 mm long, more or less ovate, acute, irregularly 1-, 2-lobed. Anthers about 3 mm long. Bisexual floret lemma about 5 mm long, narrow-ovate, smooth below tip, tip minutely hairy, muticous or subapically mucronate, mucro to 1 mm long. Palea about equalling lemma, ovate-lanceolate.

Planta perennis, robusta, laxe caespitosa. Culmi 60-120 cm alti, cum internodiis 4-5 elongatis, cataphylla 2-3 ad 5 cm vel plus longa ad basim gerentes. Folii vagina 5-25 cm longa, glabra, plus minusve striata. Ligula 3-5 mm longa. Lamina 30-75 cm longa, 8-12 mm lata, plana, angustata. in abaxiali pagina glabra, in adaxiali pagina scabrida alteque striata. Fasciculi vasculares ad c. 40, satis uniformes. Sclerenchyma interruptum. bilaterale. ad fasciculos junctum, vittas, faciens in forma litterae T dispositas infra plana adaxialia iuga. Pedunculi vix vel valde vaginis superioribus longiores. Paniculae 15-30 cm longae, plus minusve erectae, glabrae. Rami 1-2 in quoque nodo, nudi infra, glabri. Spiculae dense confertae secus superiores ramorum cartes. Pedicelli plerumque minus quam 1 mm longi, scabridi vel villosi. Glumae subaequales; superior circa 9 mm longa. plus minusve membranacea, margine apiceque late scariosa, glabra, carinata, ovato-lanceolata, acuta, trinervis. medio nervo glumam aequanti, lateralibus nervis. circa 3 mm longis vel brevioribus. Rachilla brevissima, sinuosa, glabra. Flosculi intra glumas inclusi, brunnei vel fusci ad maturitatem. Lemmata flosculorum masculorum circa 7 mm longa, oblongo-ovata, erosa apicibus scariosis, scabrida, villosa infra et in callo, marginibus longe ciliatis pilis mollibus pallidis. Aristae graciles, satis erectae, 5-7 mm longae 1-2 mm infra apicem insertae. Paleae lemmata aequantes, latae, membranaceae, ciliatae in carinis. Lodiculae circa 1 mm longae, plus minusve ovatae, acutae, irregulariter 1-2 lobatae. Antherae circa 3 mm longae. Flosculi bisexualis lemma circa 5 mm longum, anguste ovatum, laeve infra apicem; apex minute villosus, muticus vel subapicale mucronatus, mucrone ad 1 mm longo. Palea plus minusve lemma aequans, ovato-lanceolata.

Plant perennial, slender, densely to laxly tufted, to somewhat rhizomatous. Culms 20-40 cm tall with 3 to 4 elongated internodes, 2-3 cataphylls present at base, up to 2 cm long. Leaf sheath 2-10 cm long, glabrous, more or less striated. Ligule about 0.7 mm long, membranous. Collar distinct, somewhat pulvinate. Leaf blade 2-10 cm long, 1.5-3 mm wide, flat tapering, glabrous, scarcely striated. Vascular bundles about 11 fairly uniform. Sclerenchyma discontinuous, bilateral, connected to bundles. Peduncles long. Panicles 5-10 cm long, very lax, spreading, glabrous. Branches 1-2 at each node, filiform. Pedicels 1-5 mm long, glabrous. Glumes subequal, upper about 4 mm long, obovate, subacute to rounded, membranous wtih scarious margins above, 3-nerved, middle nerve almost percurrent, lateral 0.5 to 0.75 as long. Florets exceeding the glumes, light brown at maturity. Male florets lemmas about 4 mm long, oblong, ovate, smooth below, finely scabrid to pubescent above, villous on callus, silky ciliate on margins. Awns 1-3 mm long, slender, more or less straight exserted from 0.5-1 mm below apex. Paleas as long as lemmas. Lodicules about 1 mm long, more or less ovate, acute, irregularly lobed. Stamens about 1.8 mm long. Bisexual floret lemma about 3 mm long, ovate, truncate, smooth below tips, tip more or less long, hairy muticous or mucronate, mucro subapical, about 0.5 mm long. Palae about equalling glumes, oblong-ovate, 2-, occasionally 3-nerved.

Plant perennial, more or less rhizomatous. Culms several-noded. Leaf sheath and collar without auricles. Ligule laminate, thick to membranous. Leaf collar distinct, as wide as blade. Leaf blade linear, more or less tapering. Silica cells various more or less rectangular to round. Papillae not developed. Microhairs absent. Vascular bundles all similar. Chlorenchyma diffuse. Inflorescence a panicle. Spikelets all similar, pedicellate, more or less compressed laterally. Glumes subequal, chartaceous to membranous. Florets three, mostly: two lower male, upper hermaphrodite to female. Lemmas about oblong-ovate, 5-nerved, of male florets, with ciliate margins, mid-dorsally to subapically awned, of bisexual floret glabrous to hairy above, subapically short awned to muticous. Palea of male florets 2-nerved, of female floret, 1-2-nerved. Lodicules 2. irregularly 1-, 2-, or more lobed. Stamens 3 in male florets, 2 or 3 in bisexual. Ovary glabrous. Styles 2, free to connate at base. Stigmas long, plumose. Fruit more or less elliptic, somewhat compressed laterally, 2-4 mm long, free. Starch grains compound. Hilum basal, narrow elliptic. Embryo about 0.25 as long as fruit. Scutellum scutate. Epiblast present. Plumule sessile. Radicle more or less free from scutellum. First post-coleoptile leaf narrow, 3-nerved. Chromosomes of medium length (4-6 mcm long), basic number 7.

Plant perennial, robust laxly tufted. Culms 20-40 cm tall with 3-4 elongated internodes. 2-3 cataphylls present at base, up to 5 cm long. Leaf sheath 2-10 cm long, glabrous, more or less striated, mostly deep purple. Ligule about 1 mm long, rather thick. Collar distinct, somewhat pulvinate. Leaf blade 7-15 cm long, 3-6 mm wide, flat, tapering, glabrous to somewhat scabrous on both surfaces. Adaxial surface scarcely striated, ridges broad, flat, with broad bands of enlarged sunken epidermal cells between them. Vascular bundles about 15, fairly uniform. Sclerenchyma discontinuous, bilateral, connected to bundles, or occasionally missing in alternate bundles. Peduncles longer than uppermost sheaths. Panicles 8-16 cm long, very lax, spreading, glabrous. Branches 1-2 at each node, long slender bare below. Spikelets few towards ends of branches. Pedicels 1-5 mm long, more or less scabrid to villous near apex. Glumes subequal, upper about 6 mm long, obovate, subacute to rounded, often tinged purple with wide hyaline margins, glabrous, 3-nerved, middle nerve percurrent, lateral 0.5 to 0.7 as long. Rachilla sinuous, glabrous. Florets longer than lower glume, brown, female somewhat lighter than male, more or less shiny. Male floret lemmas about 5.5 mm long, oblong, rounded, finely scabrid, long ciliate margins with light brown cilia, sparsely villous on callus. Awns of the two florets rather stout, unequal, that of lower 2-3 mm long, scarcely twisted or bent, that of upper 4-6 mm long twisted below and bent, exserted from about 2 mm below apex. Paleas about as long as lemmas, wide, finely pubescent above. Lodicules about 1 mm long, more or less ovate, acute, irregularly 1-, 2-lobed. Anthers about 2 mm long. Female floret lemma about 4 mm long, ovate, smooth below finely pubescent above, with long hairs about apex mostly present. Awn rather stout 1-2 mm long, subapical. Palea about equalling lemma, ovate, lanceolate, minutely scabrid above.

Planta perennis, robusta, laxe caespitosa, plus minusve rhizomatosa; rhizomata supra solum emergentia nullis factis ramis. Culmi 20-40 cm alti, cum internodiis 3-4 elongatis, cataphylla 2-3 ad 5 cm longa ad basim gerentes. Folii vagina 2-10 cm longa, glabra, plus minusve striata, plerumque atropurpurea. Ligula circa 1 mm longa, crassiuscula. Collum distinctum aliquantum pulvinatum. Lamina 7-15 cm longa, 3-6 mm lata, plana, angustata, glabra vel leviter scabrida in utraque pagina. Pagina adaxiahs vix striata; juga lata, plana, latis vittis dilatarutn depressarum epidermalium cellularum interpositis. Fasciculi vasculares circa 15, satis uniformes. Sclerenchyma interruptum, bilaterale, ad fasciculos junctum vel in alternatis fasciculis interdum deficiens. Pedunculi vaginas supremas superantes. Paniculae 8-16 cm longae, laxissimae, effusae, glabrae. Rami 1-2 in quoque nodo, longi, graciles, infra nudi. Spiculae paucae ad apices ramorum. Pedicelli 1-5 mm longi, plus minusve ad apicem scabridi vel villosi. Glumae subaequales, superior circa 6 mm longa, obovata, subacuta vel rotundata, saepe purpureotincta marginibus latis, hyalinis, glabris, 3-nervis; medius nervus percurrens, lateralis nervus medio dimidia vel tertia parte brevior. Rachilla sinuosa, glabra. Flosculi glumam inferiorem superantes, brunnei, feminei aliquantum pallidiores quam masculi, plus minusve nitidi. Lemmata flosculorum masculorum circa 5.5 mm longa, oblonga, rotundata, subtiliter scabrida, marginibus longe-ciliatis, ciliis pallide-brunneis, in callo sparse villosa. Aristae duorum flosculorum robustiores, inaequales; arista flosculi inferioris 2-3 mm longa, vix contorta vel reflexa; arista flosculi superioris 4-6 mm longa, infra contorta reflexaque, circa 2 mm ab apice exserta. Paleae paene lemmata aequantes, latae, supra subtiliter pubescentes. Lodiculae circa 1 mm longae, plus minusve ovatae, acutae, irregulariter 1-2-lobatae. Antherae circa 2 mm longae. Lemma flosculi feminei circa 4 mm longum, ovatum, infra glabrum, supra subtiliter pubescens, plerumque pilis longis circa apicem indutum. Arista robustior 1-2 mm longa subapicalis. Palea lemma plus minusve aequans, ovata, lanceolata, supra minute scabrida.

Plant perennial, robust, laxly tufted. Culms to 130 cm tall, with 4-5 elongated internodes. 2-3 cataphylls usually present at base, up to 5 cm and more long. Leaf sheath 15-30 cm long, glabrous more or less striated, lower somewhat purple. Ligule 2-3 mm long, somewhat irregularly rounded chartaceous. Collar distinct, somewhat pulvinate, more or less purple. Leaf blade to 70 cm long, 8-12 mm wide, flat, tapering, glabrous on abaxial surface, scabrid and deeply striated on adaxial. Vascular bundles up to about 40, fairly uniform. Sclerenchyma discontinuous, connected to bundles, forming T strands under flat adaxial ridges. Peduncles to 50 cm long. Panicles 20-30 cm long, erect, with nodding upper part and lower branches, glabrous. Branches geminate, to 12 cm long, very slender, bare 0.5 to 0.75 length, with sDikelets crowding along distal parts. Pedicels 0.5-2 mm long, villous. Glumes unequal, lower 6 mm long, shorter than nearest floret, upper 7 mm long, slightly longer than nearest floret, membranous, scarious, smooth, ovate, acute, keeled with distinct middle nerve extending to the apex, lateral nerves 0.25 as long to very short or none in the lower glume. Rachilla very short, sinuous, glabrous. Florets pale more or less stramineous at maturity. Male florets lemmas 6-6.5 mm long, oblong ovate, chartaceous with scarious tips, minutely scabrid, villous below and on callus, margins sparsely ciliate with soft silvery hairs. Awns subapical, unequal, 2-4 mm long, slender, fairly straight. Paleas about equalling lemmas, wide, membranous, finely scabrid on keels. Lodicules about 0.5 mm long, more or less ovate, acute. Anthers about 3 mm long. Bisexual floret about 5 mm long, narrow ovate, smooth below tip, tip minutely hairy, muticous to mucronate, mucro subapical. Palea about equalling lemma, ovate lanceolate, finely scabrid on keel. Lodicules about 2 mm long, ovate oblong, abruptly tapering, small side lobes frequently present. Anthers 2, or occasionally 3 about 3 mm long, fertile. Stigmas long plumose.