1	"Mature leaves ±auriculate, encircling but not sheathing stem basally, spreading, discrete, distichous, the sheath ±indistinguishable from lamina; anther connective continuous with filament"	"Dianella incollata"
1	"Mature leaves ±conspicuously sheathing stem and often equitant; leaf sheath separated from lamina by zone of occlusion; anther connective usually distinct from filament"	2
2	"Stems short, usually less than 15 cm long; leaves mostly basal with lowest 1–5 sometimes scale-like; leaf sheath rounded, ridged or sharply keeled"	3
2	"Stems variously elongated, to 1.2 m long, with or without scales below leaves; leaf sheath strongly conduplicate and broadly and acutely keeled"	9
3	"Leaf sheath distinct from lamina, conduplicate, acutely keeled; lamina with veins raised and touching on abaxial surface; margins smooth or occasionally irregularly toothed, recurved to revolute"	4
3	"Leaf sheath not clearly distinguished from lamina, rounded, ridged, or shallowly keeled; lamina with veins raised but not touching on abaxial surface; margins smooth to serrulate, flat to ±recurved (sometimes revolute when dried)"	5
4	"Inflorescence irregular in outline, evenly expanded; flower less than 13 mm diam.; anthers up to 2 mm long; ovules 2 per locule; leaf lamina long and distally flaccid (south-eastern Qld)"	"Dianella brevipedunculata"
4	"Inflorescence ovoid to conical in outline, interrupted; flower usually more than 12 mm diam.; anthers more than 2 mm long; ovules more than 3 per locule; leaf lamina short to long and ±stiffly erect, spreading or arching (south-western, southern & south-eastern Australia)"	"Dianella revoluta"
5	"Leaf lamina usually less than 4.5 mm wide; internodes of mature cymules elongated, usually more than 1 cm long; pedicels 1.5–4 times perianth length (eastern Qld)"	"Dianella rara"
5	"Leaf lamina usually more than 5 mm wide; internodes of mature cymules elongated or contracted; pedicels usually less than 1.5 times perianth length"	6
6	"Leaf sheath ±completely occluded distally where ±narrowly biconvex-elliptic in T.S.; lamina 0.4–1.2 cm wide, with several longitudinal nerves prominent; petals with 3–5 nerves; seeds finely pustulate (Qld and north-eastern N.S.W.)"	"Dianella nervosa"
6	"Leaf sheath partially occluded distally where ±crescent-, V- or Y-shaped in T.S.; lamina 0.2–2.5 cm wide, with midrib more prominent than other nerves; seeds smooth but minutely areolate or colliculate"	7
7	"Margins of leaf lamina and midrib on lower surface regularly serrulate-scabrous; flowers deep blue (northern Qld)"	"Dianella caerulea"
7	"Margins and midrib of leaf lamina smooth or occasionally with scattered sharp teeth; flowers pale blue to white, or rarely dark blue"	8
8	"Leaf lamina usually strongly recurving, 0.6–1.8 cm wide; inflorescence ±hemispherical to ovate in outline, the peduncle oblique, the flowers somewhat crowded; intermediate bracts broadly obtuse; petals 3–5-nerved (mid-eastern Qld to south-eastern N.S.W.)"	"Dianella crinoides"
8	"Leaf lamina erect or ascending but often flaccidly drooping distally, 0.2–2.5 cm wide; inflorescence ovate to obovate or narrowly cylindrical in outline, the peduncle erect, the flowers well spaced; intermediate bracts ±acute; petals usually 3-nerved (northern, eastern & southern Australia)"	"Dianella longifolia"
9	"Leaf sheath partly occluded distally where V-shaped or Y-shaped in T.S.; intervein areas of leaf lamina ±translucent or opaque"	10
9	"Leaf sheath ±completely occluded distally where ±biconvex in T.S.; intervein areas of leaf lamina opaque or occasionally translucent"	13
10	"Margin of leaf lamina smooth; venation ±scalariform; intervein areas translucent"	11
10	"Margins of leaf lamina serrulate-scabrous; venation parallel or scalariform; intervein areas opaque or translucent"	12
11	"Pedicels arching or spreading; petals 5-nerved; lateral faces of seed areolate but smooth and evenly convex; (northern Qld & northern N.T.)"	"Dianella odorata"
11	"Pedicels ±straight, erect or ascending; petals 3-nerved; lateral faces of seed alveolate and irregularly ridged (northern Qld)"	"Dianella bambusifolia"
12	"Leaf lamina ±coriaceous; venation parallel; intervein areas opaque; midrib on abaxial surface scabrous; flowers blue to white; anthers pale yellow-brown (south-eastern Qld & eastern N.S.W.)"	"Dianella caerulea"
12	"Leaf lamina ±herbaceous; venation ±scalariform; intervein areas translucent near midrib; midrib smooth; flowers sky-blue to purple; anthers usually red-brown (north-eastern Qld)"	"Dianella pavopennacea"
13	"Nerves on abaxial surface of leaf lamina raised and touching; margins of lamina and midrib on abaxial surface usually smooth, occasionally irregularly toothed; anthers pale brown to almost black (south-western, southern and south-eastern Australia)"	"Dianella revoluta"
13	"Nerves on abaxial surface of leaf lamina raised but not touching; margins of lamina and midrib on abaxial surface usually scabrous throughout; anthers yellow to red-brown or rarely dark blue"	14
14	"Mature berry longer than wide; anthers shorter than or equalling filament swelling; rhizome golden yellow (south-eastern Australia)"	"Dianella tasmanica"
14	"Mature berry shorter than or as long as wide; anthers much longer than filament swelling; rhizome pale to dark brown"	15
15	"Plant to 1.3 m tall, forming spreading or matted colony; rhizome elongated, the stems up to 1 m apart, ±leafy throughout, 0.3–1 m long"	16
15	"Plant to 1.8 m tall, tufted, less than 0.3 m across at base; rhizome compact, the stems close together, leafy throughout or near apex only, to c. 2 m long"	17
16	"Axis and primary branches of inflorescence well developed; inflorescence erect, conspicuously exceeding foliage; margin of leaf lamina serrulate-scabrous throughout (eastern Australia)"	"Dianella caerulea"
16	"Axis of inflorescence reduced, the primary branching absent or poorly developed; inflorescence spreading to decurved, rarely exceeding foliage; margin of leaf lamina usually smooth (south-eastern Qld & north-eastern N.S.W.)"	"Dianella congesta"
17	"Plant ±glaucous- to pruinose-purple; seed ±angularly ridged, usually more than 3.8 mm long; testa reticulately grooved and minutely colliculate, dull to ±shiny (central-eastern N.S.W.)"	"Dianella prunina"
17	"Plant green but sometimes glaucous and/or marked with purple; seed evenly rounded, to 3.8 mm long; testa smooth or irregularly grooved, minutely areolate or colliculate, shiny"	18
18	"Leaf lamina 1.8–4.5 cm wide, ±translucent, the venation ±scalariform; inflorescence narrowly ovate in outline, interrupted, the axes longitudinally furrowed and keeled; mature cymules condensed; flowers dark blue to violet (northern Qld)"	"Dianella atraxis"
18	"Leaf lamina to 2 cm wide, ±opaque, the venation closely parallel; inflorescence narrowly cylindrical to ovate or conical in outline, sometimes interrupted, the axes terete to somewhat angular; mature cymules ±expanded; flowers deep blue to green-white (eastern mainland Australia)"	"Dianella caerulea"