2n = 28

2n = 28

Soft, weak, loosely tufted, stoloniferous or rhizomatous perennial, c. 5-40 cm tall, rooting at lower nodes, smaller tufts sometimes with close-packed shoots; leaves shorter than culms, bright green, laminae persistent; new shoots extravaginal near plant base, intravaginal above. Sheaths light green, sometimes purplish, later very light brown, membranous, distinctly nerved, smooth; ligule 0.5-1.5- (3) mm long, entire, smooth across subobtuse top and smooth abaxially; lamina c. 2-9 cm × 0.5- 1.5 mm, flat, slightly scabrous adaxially and on margins, and abaxially near acute, ± incurved tip. Culms (3)-10-25-(35)cm tall, smooth. Panicle 3- 10—(16) cm long, lax and delicate; branchlets often in pairs, very fine, scabrous, spreading, bearing few spikelets, pedicels scabrous on angles, often purplish. Spikelets 2-3-(5) mm long, 2-3-(5)-flowered, light green, often purple-tinged. Glumes usually noticeably unequal, often purplish, smooth, margins entire; lower glume 0.3-0.8-(1) mm long, 1-nerved, triangular, subacute; upper (0.8)—1— 1.5 mm long, 3-nerved, more ovate, subobtuse, rarely with a few teeth on midnerve. Lemma 1.2- 2 mm long, 3-nerved, subobtuse, glabrous, smooth apart from a few teeth on midnerve, margins entire, usually purplish towards tip. Palea 1.0-1.5 mm long, keels smooth, or with a few prickle-teeth near tip, smooth between keels. Lodicules c. 0.4 mm long, rarely hair-tipped. Callus glabrous. Rachilla c. 0.5 mm long, smooth. Anthers 0.2-0.3 mm long. Caryopsis 0.9-1 × 0.3-0.5 mm. 2n = 28 (also for plants recorded as P. breviglumis var. brockiei). Endemic

Soft, weak, loosely tufted, stoloniferous or rhizomatous perennial, c. 5-40 cm, rooting at lower nodes, smaller tufts sometimes with close-packed shoots; leaves < culms, bright green, leaf-blades persistent; branching extravaginal near plant base, intravaginal above. Leaf-sheath light green, sometimes purplish, later very light brown, membranous, distinctly ribbed, glabrous. Ligule 0.5-1.5-(3) mm, entire, glabrous throughout. Leaf-blade c. 2-9 cm × 0.5-1.5 mm, flat, abaxially slightly scabrid near acute, ± incurved tip, slightly scabrid adaxially and on margins. Culm (3)-10-25-(35) cm, internodes glabrous. Panicle 3-10-(16) cm, lax and delicate; branches often paired, very fine, scabrid, spreading, bearing few spikelets, pedicels scabrid on angles, often purplish. Spikelets 2-3-(5) mm, 2-3-(5)-flowered, light green, often purple-tinged. Glumes usually noticeably unequal, often purplish, smooth; lower 0.3-0.8-(1) mm, 1-nerved, triangular, subacute, upper (0.8)-1-1.5 mm, 3-nerved, more ovate, subobtuse, rarely with a few prickle-teeth on midnerve; margins entire. Lemma 1.2-2 mm, 3-nerved, subobtuse, smooth apart from a few prickle-teeth on midnerve; margins entire, usually purplish towards tip. Palea 1.0-1.5 mm, keels smooth, or with a few prickle-teeth near tip, interkeel smooth. Callus glabrous. Rachilla c. 0.5 mm, glabrous. Lodicules c. 0.4 mm, rarely hair-tipped. Anthers 0.2-0.3 mm. Gynoecium: ovary 0.4 mm; stigma-styles 0.7-0.8 mm. Caryopsis 0.9-1 × 0.3-0.5 mm. 2n= 28.

Grass perennial, densley tufted, 10-20 cm tall. Culms profusely branched, lower branches intravaginal or extravaginal, upper branches intravaginal. Internodes about 10, 1-1.5 cm long. Leaf sheath 2-3 cm long ± compressed, distinctly nerved, smooth, glabrous, scarious margin distinct. Leaf blade 1.5-3 cm long, flat, ± strict, linear, tip acute, white, somewhat incurved; glabrous, ± scabrid on margins at base. Ligule 0.5 mm long, truncate to obtuse membranous, entire. Peduncles 6-12 cm long, glabrous smooth. Panicle 2-4 cm long, 2-4 cm wide, pyramidal; lower branches in whorls of 2, widespreading, minutely scabrid, bearing 3-5 spikelets; pedicels 3-6 mm long. Spikelets 2 mm long, turgid, 2-flowered. Rachilla internodes c. 0.5 mm long above each floret. 1st glume 0.6 mm long, triangular, subacute, 1-nerved, smooth. 2nd glume 0,8 mm long, broad, ovate, retuse, 3-nerved. Lemma 1.4 mm long, ovate, keeled, obtuse to truncate at apex, glabrous, scabrid on keel near apex, 3-nerved, scarious margin narrow. Palea 1.4 mm long, ovate, two keeled, glabrous scabrid on keels above. Caryopsis 1.1 mm long broad-oblong, pointed above and below, free.

Gramen perenne, dense caespitosum, 10-20 mm altum. Culmi copiose divisi, ramis inferioribus intravaginalibus vel extravaginalibus, ramis superioribus intravaginalibus. Internodia circiter 10, 1-1.5 mm longa Vagina 2-3 cm longa, ± compressa, distincte nervosa, laevis, glabra, margine distincte scarioso. Lamina 1.5-3 cm longa, plana, ± stricta, linearis, apice aeuto, albo, subineurvato, glabra, marginibus ad basin ± seariosis. Ligula 0. 5 mm longa, truneata vel obtusa, membranacea, integra. Pedunculi 6-12 cm longi, glabri, laeves. Panicula 2-4 cm longa, 2-4 cm lata, pyramidalis; ramis inferioribus 2-verticillatis, patentibus, minute scabrids, spiculas 3-5-gerentibus; pedicelli 3-6 mm longi. Spiculae 2 mm longae, turgidae, 2-florae. Rhachillae internodia c. 0.5 mm longa. Gluma inferior 0.6 mm longa, triangularis, subacuta, 1-nervis, laevis. Gluma superior 0.8 mm longa, lata, ovata, retusa, 3-nervis. Lemma 1.4 mm longum, ovatum, carinatum, ad apicem obtusum vel truncatum, glabrum, carina prope apicem scabrida, 3-nerve, marginibus scariosis angustis. Palea 1.4 mm longa, ovata, bicarinata, glabra, carinis supra scabridis. Caryopsis 1,1 mm longa, late oblonga, apice basique acuta, libera.

Plant perennial, loosely tufted c. 20-30 cm tall. Culms sparingly branched, lower branches intravaginal and extravaginal, upper intravaginal. Internodes about 8, lower 2-4 cm long. Leaves ± glaucous; sheath 3-6 cm long, distinctly nerved, smooth, glabrous, scarious margin distinct; leaf blade 6-12 cm long 2-3 mm wide, flat, ± tapering, glabrous scabrid on margins and above nerves; ligule 0.5-1 mm long obtuse to subacute membranous. Peduncles rather short (specimens immature). Panicles e. 8 cm long, lax, spreading; lower branches in whorls 2-4 strongly scabrid, bearing 5-10 spikelets. Spikelets c. 3,5 mm long, ± compressed 4-flowered; rachilla internodes c. 4 mm long. 1st glume c. 0.5 mm long, acute, 1-nerved, somewhat scabrid. 2nd glume 1.0-1.5 mm long, acute, 3-nerved, ± scabrid on nerves. Lemma 3-nerved, smooth, very acute; lower lemma c. 2.5 mm long, upper smaller. Palea c. 1.5 mm long, 2-keeled, short ciliate on keels.

Gramen perenne, laxe caespitosum, 20-30 cm altum. Culmi sparse divisi, ramis inferioribus intravaginalibus. vel extravaginalibus, ramis superioribus intravaginalibus. Internodia circiter 8, inferiore 2-4 cm longo. Folia ± glauca; vagina 3-6 cm longa, distincte nervosa laevis, glabra, margine distincte scarioso; lamina 6-12 cm longa, 2-3 mm lata, plana, sensim attenuata, glabra, margines nervosque secundum scabrida; ligula 0.5-1 mm longa, obtusa vel acuta, membranacea. Pendunculi breviculi (specimina immatura). Panicula circiter 8 cm longa, laxa, ramis inferioribus 2-4-verticillatis, patentibus, valde scabrids, 5-10 spiculas gerentibus. Spiculae circiter 3. 5 mm longae, compressae, 4-florae. Rachillae internodia circ. 4 mm longa. Gluma inferior circ 0. 5 mm longa, acuta, 1-nervis, plus minusve scabrida. Gluma superior 1.0-1.5 mm longa, acuta, 3-nervis, nervi scabridi. Lemma 3-nerve, glabra, valde acuta; lemma inferior circ. 2. 5 mm longa, lemma superior minus. Palea circ. 1.5 mm longa, bicarinata, carinis scabridis.