1	"Bracts adnate laterally in lower part at least, forming pouches; anther truly versatile"	Curcuma
1	"Bracts never so joined; anther not versatile"	2
2	"Inflorescence borne separately from leaves"	3
2	"Inflorescence terminal on a (sometimes very short) leafy stem"	6
3	"Inflorescence held well above ground on a ±erect peduncle; style exserted well beyond anther and enfolded by long anther crest, giving a 'beaked' appearance"	Zingiber
3	"Inflorescence borne at ground level or partly subterranean; anther crest, if present, not as above"	4
4	"Labellum with an elongate central lobe; basal part of labellum joined with base of filament forming a distinct tube above insertion of petals"	"Etlingera {Etlingera australasica}"
4	"Labellum without an elongate central lobe; basal portion of labellum never forming a tube with filament"	5
5	"Inflorescence surrounded by involucre of rigid sterile bracts"	"Hornstedtia {Hornstedtia scottiana}"
5	"Inflorescence lacking rigid involucre"	Amomum
6	"Leaf shoots very short-stemmed, the blades few, lying flat on ground; anther crest prominent, reflexed"	"Kaempferia {Kaempferia sp. Murray Island (M.Lawrie 5)}"
6	"Leaf shoots with well-developed stems; anther crest not well-developed, or absent"	7
7	"Flowers frequently replaced by bulbils; anther with 4 lateral appendages"	"Globba {Globba marantina}"
7	"Flowers not replaced by bulbils; anther without lateral appendages"	8
8	"Stamen exserted; lateral staminodes petaloid"	Hedychium
8	"Stamen not exserted; lateral staminodes reduced to small teeth or absent"	9
9	"Flowers borne singly; bracts quickly caducous; fruits orange-red"	"Pleuranthodium {Pleuranthodium racemigerum}"
9	"Flowers borne in cincinni; bracts at least partially persistent; fruits greyish purple-brown or blue"	Alpinia