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"	"Lomandra leucocephala subsp. robusta"
2	"Flower-subtending bracts entire or only slightly split"	3
3	"Sepals and petals of male flowers fused into a tube in the lower half"	4
3	"Sepals and petals of male and female flowers free to base, at least at their margins"	8
4	"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"
4	"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"	5
5	"Leaf sheath margins intact except sometimes when old"	6
5	"Leaf sheath margins lacerated, characteristically lattice-like at first"	7
6	"Leaf sheath margins narrowing gradually at top; plants tufted"	"Lomandra rupestris"
6	"Leaf sheath margins narrowing abruptly or auriculate at top; plants not tufted, the mature stems manifestly extending, prostrate or decumbent"	"Lomandra mucronata"
7	"Flowers remaining yellowish after anthesis; bracts pale, becoming chestnut brown in age; flowering in spring"	"Lomandra collina"
7	"Flowers blackening at or after anthesis; bracts pale, remaining so in age; flowering in autumn"	"Lomandra tropica"
8	"Male flowers grouped in clusters or whorls of several to many; female flowers arranged similarly or in a single terminal cluster"	9
8	"Male flowers separate or 2 or 3 together; female flowers arranged similarly or in a single terminal cluster"	23
9	"Flowers restricted to numerous branches less than 10 mm long which are often obscured"	"Lomandra hastilis"
9	"Flowers in clusters or whorls on rachis as well as on branches (when present) usually more than 10 mm long"	10
10	"Male flowers distinctly pedicellate, pedicel visible above bracts for 2 mm or more at anthesis"	11
10	"Male flowers all sessile or with pedicel visible above bracts by less than 2 mm at anthesis"	15
11	"Leaf sericeous at least at base"	"Lomandra sericea"
11	"Leaf glabrous"	12
12	"Sheath margins finely lacerated into dark brown or black fibres"	"Lomandra nigricans"
12	"Sheath margins intact or if finely lacerated into fibres, then fibres whitish"	13
13	"Sepals and petals usually deep purple, inflorescence distinctly exceeding leaves"	"Lomandra purpurea"
13	"Sepals and petals yellowish, white, or only sepals purple; inflorescence shorter to longer than leaves"	14
14	"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"
14	"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"
15	"Leaf apex not toothed; scape terete to strongly flattened"	16
15	"Leaf apex toothed, the lateral teeth sometimes small and 1-3 cm from apical point; scape strongly flattened"	22
16	"Leaves terete"	"Lomandra spartea"
16	"Leaves flat, incurved or inrolled"	17
17	"Scape strongly flattened, thin"	"Lomandra sonderi"
17	"Scape terete or only slightly flattened"	18
18	"Inflorescence unbranched"	19
18	"Inflorescence usually branched, at least in males"	20
19	"Bracts shorter than flowers"	"Lomandra preissii"
19	"Bracts longer than flowers, at least in lower half of inflorescence"	"Lomandra caespitosa"
20	"Flower whorls crowded, dense, forming a continuous cylinder sometimes interrupted toward base"	"Lomandra preissii"
20	"Flower whorls distinct, often distant"	21
21	"Leaves sericeous at least at base"	"Lomandra sericea"
21	"Leaves glabrous"	"Lomandra ordii"
22	"Stem elongated and decumbent or slightly extended and erect, older parts often lacking leaves or bearing only leaf remnants"	"Lomandra rigida"
22	"Stem short, largely or wholly concealed by the leaves"	"Lomandra spicata"
23	"Leaves, at least a few on each plant, coiling from the apex when old"	24
23	"Leaves straight or arched, not coiling from the apex when old"	26
24	"Female inflorescence nodding; male inflorescence erect"	"Lomandra whicherensis"
24	"Both female and male inflorescences erect"	25
25	"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"
25	"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"
26	"Male flower sessile, ±erect within the bract"	27
26	"Male flower on pedicel at least 1 mm long, spreading or recurved from the axil"	28
27	"Inflorescence short and dense, bracts and often the flowers overlapping; scape longer than rachis; bracts chartaceous, straw-coloured"	"Lomandra caespitosa"
27	"Inflorescence with flowers distant, not overlapping; scape not conspicuously longer than the rachis; bracts somewhat membranous, purple-mottled"	"Lomandra brittanii"
28	"Leaf apex with a distinct sinus between two strong lateral points"	"Lomandra effusa"
28	"Leaf apex rounded, acute or acuminate, entire or with a few minute points terminating veins and soon eroded"	29
29	"Sepals and petals of male flowers similar"	30
29	"Sepals and petals of male flowers dissimilar"	31
30	"Leaves 3–12 mm wide, flat (W.A.)"	"Lomandra drummondii"
30	"Leaves usually less than 3 mm wide, if broader and flat then E Australia"	"Lomandra micrantha"
31	"Plants decumbent"	"Lomandra pauciflora"
31	"Plants tufted, sometimes sparsely so"	"Lomandra nutans"