1	"Leaves with the sheath margin continuing along each side of the lamina to the apex as a white membrane, initially folded inward over the adaxial surface of the developing leaf lamina, then spreading horizontally away from the lamina edge, entire and conspicuous in younger, fully expanded leaves, abrading or splitting away in longitudinal fibres on older leaves and, eventually, more or less completely lost; pedicels mostly 10–16 mm long"	"Lomandra marginata"
1	"Leaves without a white, marginal membrane; pedicels usually less than 10 mm long"	2
2	"Flower-subtending bracts forming a mass of crinkly hairs"	3
2	"Flower-subtending bracts entire or only slightly split"	4
3	"Leaves terete"	"Lomandra juncea"
3	"Leaves flat"	"Lomandra leucocephala"
4	"Sepals and petals of male flowers fused into a tube in the lower half"	5
4	"Sepals and petals of male and female flowers free to base, at least at their margins"	14
5	"Cluster bracts on male and female inflorescences up to 13 mm long, greatly exceeding the flower clusters; male flowers 2.2–3.0 mm long; male inflorescence unbranched"	"Lomandra acicularis"
5	"Cluster bracts at least in male inflorescences short and obscured by the flowers; male flowers either c. 2 mm long or else 3.5–6 mm long"	6
6	"Male flowers 3.5–6 mm long; male inflorescence usually unbranched, more or less obscure at base of leaves"	"Lomandra suaveolens"
6	"Male flowers c. 2 mm long; male inflorescence branched or unbranched, not obscure at base of leaves"	7
7	"Leaf sheath margins intact except sometimes when old"	8
7	"Leaf sheath margins lacerated, characteristically lattice-like at first"	10
8	"Leaf sheath margins narrowing gradually at top; plants tufted"	"Lomandra rupestris"
8	"Leaf sheath margins narrowing abruptly or auriculate at top; plants not tufted, the mature stems manifestly extending, prostrate or decumbent"	9
9	"Leaf sheath margins auriculate at top, white; leaves often twisted or recurved from the stem"	"Lomandra obliqua"
9	"Leaf sheath margins narrowing abruptly at top, white to golden brown with a reddish band along junction with leaf base; leaves not or scarcely twisted or recurved"	"Lomandra mucronata"
10	"Leaf sheath margins abruptly narrowed at top (obvious on young leaves)"	11
10	"Leaf sheath margins narrowing gradually at top"	12
11	"Male inflorescence branched or unbranched, usually 10 cm long; male scape usually not exposed above leaf bases or rarely exposed up to 2.5 cm; leaves usually 8–20 cm long, up to 4 times as long as male inflorescence"	"Lomandra glauca"
11	"Male inflorescence unbranched, usually 5–8 cm long; male scape exposed c. 1 cm above leaf bases; leaves usually 30–40 cm long, at least 5 times as long as male inflorescence"	"Lomandra elongata"
12	"Leaves usually 5–15 cm long, rarely to 20 cm, bluish green, erect or often curved to one side; male inflorescence usually unbranched"	"Lomandra nana"
12	"Leaves usually 10-45 cm long, more or less glaucous, never curved to one side; male inflorescence usually branched"	13
13	"Flowers remaining yellowish after anthesis; bracts pale, becoming chestnut brown in age; flowering in spring"	"Lomandra collina"
13	"Flowers blackening at or after anthesis; bracts pale, remaining so in age; flowering in autumn"	"Lomandra tropica"
14	"Male flowers grouped in clusters or whorls of several to many; female flowers arranged similarly or in a single terminal cluster"	15
14	"Male flowers separate or 2 or 3 together; female flowers arranged similarly or in a single terminal cluster"	42
15	"Flowers restricted to numerous branches less than 10 mm long which are often obscured"	16
15	"Flowers in clusters or whorls on rachis as well as on branches (when present) usually more than 10 mm long"	17
16	"Pedicels of male flowers 1.5–2 mm long; flowers purple-black"	"Lomandra hastilis"
16	"Pedicels of male flowers up to 4.5 mm long; flowers greenish purple"	"Lomandra teres"
17	"Male flowers distinctly pedicellate, pedicel visible above bracts for 2 mm or more at anthesis"	18
17	"Male flowers all sessile or with pedicel visible above bracts by less than 2 mm at anthesis"	23
18	"Leaf sericeous at least at base"	"Lomandra sericea"
18	"Leaf glabrous"	19
19	"Sheath margins finely lacerated into dark brown or black fibres"	"Lomandra nigricans"
19	"Sheath margins intact or if finely lacerated into fibres, then fibres whitish"	20
20	"Sepals and petals usually deep purple, inflorescence distinctly exceeding leaves"	"Lomandra purpurea"
20	"Sepals and petals yellowish, white, or only sepals purple; inflorescence shorter to longer than leaves"	21
21	"Sepals more or less uniformly purplish; petals yellow; rachis and branches usually minutely rough"	"Lomandra multiflora"
21	"Sepals and petals predominantly white or yellowish green with purple marking in upper part only, or flower without purple colouring; rachis and branches smooth"	22
22	"Sepals and petals white, usually with purple marking in upper part only; sheath margins intact; inflorescence usually more than 1/2  as long as leaves"	"Lomandra integra"
22	"Sepals and petals yellowish green, usually with purple or green markings; sheath margins lacerated into fibres; inflorescence usually less than 1/3 as long as leaves"	"Lomandra odora"
23	"Leaf apex not toothed; scape terete to strongly flattened"	24
23	"Leaf apex toothed, the lateral teeth sometimes small and 1-3 cm from apical point; scape strongly flattened"	33
24	"Leaves terete"	"Lomandra spartea"
24	"Leaves flat, incurved or inrolled"	25
25	"Scape strongly flattened, thin"	"Lomandra sonderi"
25	"Scape terete or only slightly flattened"	26
26	"Inflorescence unbranched"	27
26	"Inflorescence usually branched, at least in males"	29
27	"Flower whorls distinct, often distant; scape usually shorter than rachis"	"Lomandra multiflora"
27	"Flower whorls crowded, forming a continuous cylinder sometimes interrupted toward base; scape longer than rachis"	28
28	"Bracts shorter than flowers"	"Lomandra preissii"
28	"Bracts longer than flowers, at least in lower half of inflorescence"	"Lomandra caespitosa"
29	"Flower whorls crowded, dense, forming a continuous cylinder sometimes interrupted toward base"	"Lomandra preissii"
29	"Flower whorls distinct, often distant"	30
30	"Leaves sericeous at least at base"	"Lomandra sericea"
30	"Leaves glabrous"	31
31	"Rachis and inflorescence branches minutely rough"	"Lomandra multiflora"
31	"Rachis and inflorescence branches smooth"	32
32	"Leaves 10-20 mm wide; flowers white or cream"	"Lomandra ordii"
32	"Leaves 2.5-4.5 mm wide; flowers purple and yellow"	"Lomandra patens"
33	"Leaves disarticulating readily below, the sheathing base with 0.5 cm of strongly recurving lamina persisting on the extended stem; stem decumbent or erect, up to 3 m long"	"Lomandra banksii"
33	"Leaves not disarticulating readily near base, not leaving strongly recurving remnants; stem short, plants tufted, or stem elongated but less than 0.5 m long"	34
34	"Stem elongated and decumbent or slightly extended and erect, older parts often lacking leaves or bearing only leaf remnants"	35
34	"Stem short, largely or wholly concealed by the leaves"	36
35	"Leaves 3–4.5 mm wide; sheath margins narrowing abruptly at top"	"Lomandra rigida"
35	"Leaves 0.3–2.5 mm wide; sheath margins narrowing gradually at top (difficult to determine but can be assumed when margins lacerated) or if narrowing abruptly, leaves less than 1.5 mm wide"	"Lomandra confertifolia"
36	"Male inflorescence branched"	37
36	"Male inflorescence not (or rarely) branched"	40
37	"Leaves up to 2.5 mm wide"	38
37	"Leaves 4.5 mm wide or more"	39
38	"Scape 2–3 or more times as long as rachis"	"Lomandra fluviatilis"
38	"Scape shorter to about as long as rachis"	"Lomandra confertifolia"
39	"Inflorescences with extensive secondary branching; major primary branches usually 4 per node"	"Lomandra hystrix"
39	"Inflorescence with primary branching or occasionally with some secondary branching; major primary branches usually 2 per node"	"Lomandra longifolia"
40	"Leaves 4–12 mm wide; rachis of male inflorescence 10–30 cm long"	"Lomandra spicata"
40	"Leaves up to 4 mm wide; rachis of male inflorescence less than 8 cm long"	41
41	"Leaves soft and flexible, thin and flat, 2–4 mm wide"	"Lomandra montana"
41	"Leaves rather stiff, straight or arched, concavo-convex, usually not more than 1.5 mm wide"	"Lomandra confertifolia"
42	"Leaves, at least a few on each plant, coiling from the apex when old"	43
42	"Leaves straight or arched, not coiling from the apex when old"	45
43	"Female inflorescence nodding; male inflorescence erect"	"Lomandra whicherensis"
43	"Both female and male inflorescences erect"	44
44	"Leaves pinkish brown to brick red when dry, bases white or pale grey; branches and pedicels in male inflorescence often whorled but pedicels of upper flowers sometimes opposite; flowering in autumn (Apr.–June)"	"Lomandra hermaphrodita"
44	"Leaves straw-coloured when dry, bases light brown, pinkish or mauve; male flowers 1–3 at nodes of the inflorescence axes; flowering in spring (Aug.–Oct.)"	"Lomandra maritima"
45	"Male flower on pedicel at least 1 mm long, spreading or recurved from the axil"	46
45	"Male flower sessile, ±erect within the bract"	62
46	"Leaf apex with a distinct sinus between two strong lateral points"	"Lomandra effusa"
46	"Leaf apex rounded, acute or acuminate, entire or with a few minute points terminating veins and soon eroded"	47
47	"Sepals and petals of male flowers similar"	48
47	"Sepals and petals of male flowers dissimilar"	49
48	"Leaves 3–12 mm wide, flat (W.A.)"	"Lomandra drummondii"
48	"Leaves usually less than 3 mm wide, if broader and flat then E Australia"	"Lomandra micrantha"
49	"Sepals longer than petals, at least the sepals and sometimes also the petals attenuate"	50
49	"Sepals shorter than petals, sepals and petals never attenuate but often apiculate"	51
50	"Leaves 0.5–l mm wide, the apex acuminate, margins minutely and regularly serrulate"	"Lomandra fibrata"
50	"Leaves 1–6 mm wide, flat to terete (sometimes on one plant), the apex with a few minute points soon eroded, margins smooth"	"Lomandra densiflora"
51	"Plants tufted, sometimes sparsely so"	52
51	"Plants decumbent"	61
52	"Leaves usually terete"	"Lomandra cylindrica"
52	"Leaves not terete though sometimes rolled into a complete cylinder"	53
53	"Male inflorescence unbranched or narrowly pyramidal with 1 to few short branches in the lower part"	54
53	"Male inflorescence clearly branched, more or less broadly pyramidal"	55
54	"Leaves channelled to slightly inrolled, 0.5-1 mm wide, the apex entire; inflorescence axes smooth; flowers yellow, blackish when dried; male flowers usually 3 mm long, 3-4 mm diam. with pedicel 3-4 mm long"	"Lomandra brevis"
54	"Leaves flat, channelled or inrolled, 0.5-4 mm wide or wider, the apex entire or with 2 or 3 minute irregular points sometimes eroded; inflorescence axes smooth or scabrid; flowers yellow, not usually blackened when dried; male flowers usually 1.5 mm long, 1.5-2 mm diam. with pedicel usually 2-3 mm long"	"Lomandra filiformis"
55	"Male inflorescence short; flowers crowded; scape short or obscure among the leaf bases"	56
55	"Male inflorescence sometimes short but flowers well spaced; scape short or long"	57
56	"Outer bracts large and white, conspicuous relative to the very small flowers; female flowers scarcely distinguishable from the male without dissection"	"Lomandra bracteata"
56	"Outer bracts not large and white but bracts subtending lower branches of inflorescence sometimes conspicuous; female flowers easily distinguishable from the male"	"Lomandra filiformis"
57	"Branches of the inflorescence predominantly alternate"	58
57	"Branches of the inflorescence predominantly opposite or whorled"	60
58	"Leaves semiterete"	"Lomandra cylindrica"
58	"Leaves usually channelled, folded, inrolled or flat"	59
59	"Leaf sheath margins dark purplish brown; inflorescence usually large, open, the axes smooth at least in male"	"Lomandra gracilis"
59	"Leaf sheath margins pale or white, occasionally partly purplish brown; inflorescence small to large, the axes sometimes +/- scabrid near apex"	"Lomandra filiformis"
60	"Inflorescence nodding, axes and pedicels stout; pedicels straight, clearly articulate with flowers"	"Lomandra nutans"
60	"Inflorescence erect, axes and pedicels slender; pedicels often curved, not distinctly articulate with flowers"	"Lomandra laxa"
61	"Leaves 0.5-1 mm wide; inflorescence usually unbranched; bracts longer than pedicels"	"Lomandra pauciflora"
61	"Leaves 2-4 mm wide; inflorescence well-branched; bracts much shorter than pedicels"	"Lomandra laxa"
62	"Leaf apex distinctly toothed"	"Lomandra confertifolia"
62	"Leaf apex entire or minutely 1–3–pointed"	63
63	"Inflorescence short and dense, bracts and often the flowers overlapping; scape longer than rachis; bracts chartaceous, straw-coloured"	"Lomandra caespitosa"
63	"Inflorescence with flowers distant, not overlapping; scape not conspicuously longer than the rachis; bracts somewhat membranous, purple-mottled"	64
64	"Bracts acute of acuminate but without a long fine point, not or scarcely overtopping the flowers; female flowers scarcely distinguishable from the males, c. 2 mm long, many in the Inflorescence"	"Lomandra sororia"
64	"Bracts, at least the lower ones, with a long fine point exceeding the flowers; female flowers longer than the males. 4-6 mm long, 1-5 in the Inflorescence"	"Lomandra brittanii"