1 "Leaves distichous, well-spaced, not sheathing at the base" "Geitonoplesium {Geitonoplesium cymosum}" 1 "Leaves sheathing, crowded, more or less basal" 2 2 "Flowers red, curved-tubular, on a stout, erect, branched inflorescence to 5 m high" "Phormium {Phormium tenax}" 2 "Flowers neither red nor curved-tubular; inflorescence usually < 1 m" 3 3 "Stamens 3, with or without 3 staminodes" 4 3 "Stamens 6, occasionally 7, 8 or 10-14" 8 4 "Perianth twisted after flowering" "Hodgsoniola {Hodgsoniola junciformis}" 4 "Perianth not twisted after flowering" 5 5 "Perianth segments free to base or only shortly fused" 6 5 "Perianth segments fused into a conspicuous tube" 7 6 "Spikes globular; bracts 1-3 mm long; flowers exceeding bracts; leaves terete, sheathing at base" Stawellia 6 "Spikes elongate; bracts 3-24 mm long; flowers shorter than and concealed by bracts; leaves flat, equitant at base" Johnsonia 7 "Flowers on a peduncle covered in pungent bracts; involucral bracts fawn or brown; pedicels 0.5-2 mm long; perianth segments 3-5-nerved, pale cream or pale yellow" Hensmania 7 "Flowers on a smooth scape; involucral bracts greenish, pinkish, red or white; pedicels absent or less than 0.5 mm long; perianth segments 1-nerved, purple, white, pink or green" Johnsonia 8 "Fruit a berry" Dianella 8 "Fruit a capsule, schizocarp or indehiscent nutlet" 9 9 "Filaments all hairy or 3 hairy, 3 glabrous" 10 9 "Filaments all glabrous, or scabrous, puberulous or papillulose" 12 10 "Flowers yellow" Tricoryne 10 "Flowers blue, mauve or white" 11 11 "Flowers nodding; anther filaments distally hairy" Stypandra 11 "Flowers erect; anther filaments barbellate except at base and apex" Thelionema 12 "Perianth not twisted after flowering" "Herpolirion {Herpolirion novae-zelandiae}" 12 "Perianth twisted after flowering" 13 13 "Glandular bristles present on upper axes of inflorescence and abaxial surface of sepals; anthers dehiscing by pores" Agrostocrinum 13 "Plants lacking glandular bristles; anthers dehiscing by slits" 14 14 "Flowers sessile; inflorescence a compressed spike; perianth segments joined at base to form tube 6-7 mm long" Arnocrinum 14 "Flowers pedicellate (sometimes shortly so); inflorescence paniculate; perianth segments free or only shortly connate at base" 15 15 "Leaves all radical; inflorescence annual; pedicels to 15 mm long; Stamens of two lengths; capsule t 3-lobed; seed ± globose" Caesia 15 "Leaves radical and cauline; inflorescence perennating; pedicels to 3.5 mm long; stamens of equal length; capsule not lobed; seed ellipsoidal" Corynotheca