1	"Glumes with long, patent hairs, ca. 1 mm long; inflorescence consisting of globose clusters of 1 to many spikelets on a long peduncle"	"Scleria carphiformis"
1	"Glumes glabrous or with short hispid hairs < 0.5 mm long, without long, patent hairs"	2
2	"Small annuals (or short-lived perennials), rhizomes absent or not well developed"	3
2	"Perennials, rhizome well developed"	12
3	"Dwarf plants usually 1-10 (-20) cm high; mature achene hidden by glumes and not readily visible (Diplacrum)"	4
3	"Plants usually 15-60 cm high; mature achene not completely hidden by glumes and readily visible"	7
4	"Achene globose to ovoid"	5
4	"Achene narrow-ellipsoid to narrow-ovoid or narrow obovoid"	6
5	"Apex of female glume trilobed, prominently several nerved"	"Diplacrum caricinum"
5	"Apex of female glume with 1 acutely acuminate tooth; 1-2 nerved"	"Diplacrum pygmaeum"
6	"Achene prominently ribbed longitudinally"	"Diplacrum blakei"
6	"Achene more or less 3-angled but without prominent ribs"	"Diplacrum latzii"
7	"Inflorescence spike like, not branched, spikelet clusters sessile, subtended by bracts not exceeding the spikelets"	"Scleria pergracilis"
7	"Inflorescence paniculate, subtended by bracts usually far exceeding the inflorescence"	8
8	"Plants frequently very hairy; disc of achene with many small bumps and protrusions; peduncles of the inflorescence clusters stout, often winged"	"Scleria rugosa"
8	"Plants glabrous or only slightly hairy; disc of achene smooth, with no protrusions; peduncles of the inflorescence clusters slender, not winged"	9
9	"Achene pubescent with a purplish beak"	"Scleria biflora"
9	"Achene glabrous; beak not purplish"	10
10	"Disc lobes with short, erect, subulate tips"	"Scleria tricuspidata"
10	"Disc lobes not subulate tipped"	11
11	"Achene globose, with irregular elongated pits, a smooth triangular area immediately above each disc lobe"	"Scleria laxa"
11	"Achene oblong-ellipsoid, smooth"	"Scleria novae-hollandiae"
12	"Middle leaves of the fertile culms clustered in pseudo-whorls of 3-5"	13
12	"Middle leaves not in pseudo-whorls of 3-5, evenly spaced along the stem"	15
13	"Disc of achene cup like, covering at least the lower half of the achene"	"Scleria sumatrensis"
13	"Disc of achene shallowly 3-lobed, covering < 1/3 of the achene"	14
14	"Panicle branches at a narrow angle to the main axis; achene slightly rugulose to smooth, 2-2.5 mm long, hardly beaked, often tinged purple"	"Scleria polycarpa"
14	"Panicle branches widely spreading; achene pitted, with many shallow, rounded depressions, 2.5-3 mm long, white, beaked"	"Scleria scrobiculata"
15	"Leaf sheaths winged"	16
15	"Leaf sheaths not winged"	20
16	"Inflorescence a terminal, compact, much branched panicle; lowest involucral bract < 3 cm long, much shorter than the inflorescence"	"Scleria poiformis"
16	"Inflorescence terminal and with 1-5 lateral panicles some distance from each other; bracts leafy, > 3.5 cm, as long or longer then the inflorescence"	17
17	"Plant stoloniferous, stolons covered with purplish, lanceolate scales; achene more than 3 mm long, not beaked"	"Scleria psilorrhiza"
17	"Plant shortly rhizomatous; achene less than 3 mm long, beaked"	18
18	"Disc deeply 3-lobed, lobes very acute, frequently bidentate at the tip; achene smooth"	"Scleria levis"
18	"Disc lobes rounded, obtuse; achene frequently cancellate"	19
19	"Contraligule 1-2 cm long, a scarious, oblong, purplish strap-like appendage; bracteoles prominent below each spikelet cluster, stiff"	"Scleria ciliaris"
19	"Contraligule less than 1 cm long, with brown scarious margin; bracteoles indistinct"	"Scleria terrestris"
20	"Inflorescence a terminal, compact much branched panicle, subtended by small glume-like bracts < 12 mm long, much shorter than the inflorescence"	"Scleria poiformis"
20	"Inflorescence terminal and with 1-5 lateral panicles some distance from each other; bracts leafy, > 35 mm long, as long or longer than the inflorescence"	21
21	"Disc obsolete, or reduced to a narrow band at the base of the achene"	22
21	"Disc well developed"	23
22	"Culms 60-200 cm tall, 3-7 mm wide; lamina 7-25 mm wide"	"Scleria corymbosa"
22	"Culms 30-60 cm tall, 1.4-2 mm wide; lamina 1-4 mm wide"	"Scleria lithosperma var. linearis"
23	"Inflorescence solely with stamens, or stigmas with fruit, but not both"	"Scleria sphacelata"
23	"Inflorescence with both stamens and stigmas"	24
24	"Plant with the culms distant along a thick, robust rhizome; achene with curly ferruginous hairs; glumes hispid; found on Cape York in sandstone hills"	"Scleria psammitica"
24	"Culms clumped, stoloniferous; achene glabrous or slightly hispid; not found in sandstone hills"	25
25	"Large plants 1-2 m tall, culms 2-10 mm wide; inflorescence paniculate"	"Scleria terrestris"
25	"Smaller plants 5-60 cm tall; culms 0.8-1.5 mm wide; inflorescence of 2-5 fascicles on a long peduncle"	26
26	"Achene with a long cylindrical beak; contraligule tongue-shaped, up to 5 mm long"	"Scleria mackaviensis"
26	"Achene with a brown tip, no beak; contraligule truncate or absent"	"Scleria brownii"