1	"Inflorescence a solitary flower"	2
1	"Inflorescence of 2-many flowers"	3
2	"Plant evergreen; rootstock a rhizome"	Iris
2	"Plant not evergreen; rootstock a corm or bulb"	Romulea
3	"Inflorescence with 1 to many rhipidia, each subtended by 1 or 2 spathes, of 2-many fugacious flowers, never spicate"	4
3	"Inflorescence a spike, sometimes branched, of 2-many sessile non-fugacious flowers, each with 2 short spathes"	12
4	"Style with petaloid branches, each covering a stamen, with 2 erect crests exceeding the flap-shaped stigma (Iris-shaped flowers)"	5
4	"Style without petaloid branches or crests; stamens exposed"	7
5	"Perennials with corms; leaves and flowers annual; stamens connate"	Moraea
5	"Evergreen perennials with rhizomes; stamens free"	6
6	"Petals and sepals free, all spreading"	"Dietes: Dietes grandiflora"
6	"Petals and sepals confluent in a tube at base, petals erect"	Iris
7	"Leaves narrowed to a petiole-like base"	Patersonia
7	"Leaves broadest at base or linear"	8
8	"Leaves plicate, or bifacial and channelled"	Moraea
8	"Leaves equitant"	9
9	"Petals and sepals very unequal, the petals vestigial"	Patersonia
9	"Petals and sepals equal or subequal"	10
10	"Style branches broad, fimbriate; margins of perianth lobes undulate and crisped"	"Ferraria: Ferraria crispa subsp. crispa"
10	"Style branches filiform, never fimbriate; margins of lobes flat"	11
11	"Flowers and capsules almost sessile, partly enclosed by spathes"	Orthrosanthus
11	"Flowers and capsules exserted from spathes on long pedicels"	Sisyrinchium
12	"Style branches deeply bifid; stigmas 6 or more"	13
12	"Style branches entire; stigmas 3"	14
13	"Leaves coarsely fibrous in texture; flowers spreading in a loosely distichous spike"	Watsonia
13	"Leaves soft-textured; flowers erect in a secund spike"	Freesia
14	"Leaves densely pubescent, plicate, abruptly narrowed into a petiole-like base"	Babiana
14	"Leaves glabrous to puberulous, never plicate or abruptly narrowed at base"	15
15	"Flowers pendulous on pendulous, filiform branches of a branched spike"	"Dierama: Dierama pulcherrimum"
15	"Flowers erect to horizontal; inflorescence unbranched or with erect branches"	16
16	"Perianth tube straight; flowers more or less erect"	17
16	"Perianth tube curved; flowers spreading, often at right angles to axis"	20
17	"Perianth tube narrowly cylindrical, exserted from spathes"	Ixia
17	"Perianth tube funnel-shaped, not or hardly exserted from spathes"	18
18	"Spathes scarious, brown-streaked, ragged or lacerate"	Sparaxis
18	"Spathes membranous, at -least partially green, not brown-streaked, entire or emarginate"	19
19	"Style 3-branched immediately above perianth tube; stamens equilateral; corm bell-shaped with tunic of woody scales"	"Hesperantha: Hesperantha falcata"
19	"Style 3-branched well above perianth tube; stamens unilateral; corm globose with fibrous tunic"	Tritonia
20	"Axis of spike strongly flexuose; plant stoloniferous"	"Crocosmia: Crocosmia x crocosmiiflora"
20	"Axis of spike never flexuose; stolons absent"	21
21	"Perianth tube gibbous, abruptly dilated c. 1 cm above ovary"	"Chasmanthe: Chasmanthe floribunda"
21	"Perianth tube gradually widened, never gibbous"	22
22	"Spathes entire, acute, herbaceous"	Gladiolus
22	"Spathes toothed or lacerate, scarious"	23
23	"Perianth bilabiate, with lobes shorter than tube; spathes deeply dentate to lacerate"	"Sparaxis: Sparaxis villosa"
23	"Perianth not bilabiate, with lobes longer than tube; spathes shallowly toothed"	Tritonia