1	"Labellum hirsute above, insectiform; lamina lacking capitate calli"	2
1	"Labellum glabrous above, not insectiform; lamina with capitate calli"	5
2	"Labellum >11 mm long"	3
2	"Labellum <9 mm long"	4
3	"Horns on labellum claw medially located, reclined and well removed from the glandular callus; lamina narrowly elliptic, 9–14 × 3–7 mm"	"Caladenia mesocera"
3	"Horns on labellum claw distally located, curving forward either side of the glandular callus; lamina ovate, 7–11 × 5–7 mm"	"Caladenia barbarossa"
4	"Labellum claw loosely hinged, the claw connection >3 mm long; lamina held below the top of the ovary"	"Caladenia drakeoides"
4	"Labellum claw stiffly hinged, the claw connection <2 mm long; lamina held above the top of the ovary"	"Caladenia barbarella"
5	"Labellum margins entire or with marginal calli <1 mm long"	6
5	"Labellum margins fimbriate with marginal calli >1 mm long"	80
6	"Labellum entire, or rarely with a few minute marginal calli"	7
6	"Labellum with several to many (rarely few) marginal calli"	23
7	"Lateral sepals with swollen apical osmophores"	8
7	"Lateral sepals lacking swollen apical osmophores"	16
8	"Lateral sepals obliquely descending then prominently falcate"	9
8	"Lateral sepals spreading horizontally then obliquely descending or rarely scarcely falcate"	10
9	"Lateral lobes of labellum obtuse; lamina calli stopping well short of the dark purple apex. West of Ongerup"	"Caladenia integra"
9	"Lateral lobes of labellum shortly acute; lamina calli extending to the dark purple apex. East of Esperance"	"Caladenia exstans"
10	"Petals obliquely ascending to erect, with swollen apical osmophores."	11
10	"Petals spreading horizontally or obliquely descending, lacking swollen apical osmophores"	12
11	"Labellum lamina calli in 2 longitudinal rows"	"Caladenia sigmoidea"
11	"Labellum lamina calli aggregated into a single longitudinal row"	"Caladenia macrostylis"
12	"Labellum with prominent red stripes; lamina calli in 2 distinct longitudinal rows"	"Caladenia wanosa"
12	"Labellum with faint red stripes; lamina calli in a single longitudinal row"	13
13	"Dorsal sepal often with a swollen apical osmophore; lateral sepals with swollen apical osmophores >3 mm long"	"Caladenia incrassata"
13	"Dorsal sepal lacking a swollen apical osmophore; lateral sepals with slender apical osmophores <3 mm long"	14
14	"Labellum 14–20 mm wide, lacking dull red stripes; lamina calli thickened, conspicuously glossy on top"	"Caladenia roei"
14	"Labellum 12–16 mm wide, with dull red stripes; lamina calli slender, dull on top"	15
15	"Lateral sepals abbreviated, lacking or rarely with narrow filiform sections <3 mm long basal to the apical osmophores; labellum lamina calli in a broad longitudinal row c. 2 mm wide. Ravensthorpe to Israelite Bay"	"Caladenia brevisura"
15	"Lateral sepals elongated with narrow filiform sections >6 mm long basal to the apical osmophores; labellum lamina calli in a narrow longitudinal row about 1 mm wide. West of Ravensthorpe"	"Caladenia doutchiae"
16	"Petals and sepals white, the lateral sepals usually prominently crossed"	"Caladenia dorrienii"
16	"Petals and sepals red, yellow or green, the lateral sepals rarely crossed and, if so, never prominently"	17
17	"Lateral sepals obliquely descending then prominently falcate; labellum claw >2 mm long; lamina tremulous."	"Caladenia multiclavia"
17	"Lateral sepals spreading horizontally, obliquely descending or hanging vertically, never falcate; labellum claw <1 mm long; lamina firmly held."	18
18	"Lateral sepals >3 cm long; dorsal sepal arching backwards"	"Caladenia radialis"
18	"Lateral sepals <2.5 cm long; dorsal sepal erect"	19
19	"Labellum apex with a thickened red callus"	20
19	"Labellum apex lacking a thickened red callus"	21
20	"Labellum <8 mm wide, faintly striped"	"Caladenia pachychila"
20	"Labellum >9 mm wide, prominently striped"	"Caladenia cairnsiana"
21	"Labellum <6 mm wide, green or apricot, lacking pink or red stripes"	"Caladenia bryceana"
21	"Labellum >9 mm wide, cream or brown with faint pink or red stripes"	22
22	"Labellum transversely oval; lamina calli up to 1.5 mm tall, wedge-shaped with pink or red apices. Hyden to Balladonia"	"Caladenia voigtii"
22	"Labellum heart-shaped; lamina calli up to 2 mm tall, capitate with blackish purple apices. Wongan Hills to Watheroo"	"Caladenia cristata"
23	"Labellum lamina calli aggregated into a single longitudinal row"	24
23	"Labellum lamina calli in 2 or more longitudinal rows"	25
24	"Petals and sepals with swollen apical osmophores"	"Caladenia ensata"
24	"Petals and sepals with tapering filiform apices, lacking swollen apical osmophores"	"Caladenia radialis"
25	"Labellum lamina calli in 4 or more longitudinal rows"	26
25	"Labellum lamina calli in 2 longitudinal rows"	28
26	"Labellum apex dark red. Flowering late April–early July"	"Caladenia drummondii"
26	"Labellum apex white or pink. Flowering mid-July–November"	27
27	"Lateral sepals <3 cm long, spreading horizontally or arching outwards and downwards; labellum <8 mm wide"	"Caladenia hirta"
27	"Lateral sepals >3 cm long, obliquely descending, becoming pendulous; labellum >8 mm wide"	"Caladenia hopperiana"
28	"Dorsal sepal arching backwards away from column"	"Caladenia radialis"
28	"Dorsal sepal erect, appressed to column"	29
29	"Lateral sepals <4 cm long"	30
29	"Lateral sepals >4 cm long"	40
30	"Petals and sepals obtuse or very shortly acute, the apices scarcely hirsute"	31
30	"Petals and sepals long-acuminate and finely acute, the apices prominently hirsute"	33
31	"Petals and sepals cream"	"Caladenia marginata"
31	"Petals and sepals pink"	32
32	"Lateral sepals united in the basal 1/2"	"Caladenia nana"
32	"Lateral sepals free in the basal 1/2"	"Caladenia reptans"
33	"Labellum entire or with few marginal calli"	34
33	"Labellum serrate to dentate with numerous marginal calli"	35
34	"Flowers pale yellowish cream to white; lateral sepals usually crossed; labellum with few pale red stripes and markings"	"Caladenia dorrienii"
34	"Flowers golden-yellow; lateral sepals usually held apart; labellum with numerous dark red or rich brown stripes and markings"	"Caladenia caesarea"
35	"Petals and sepals predominantly pinkish red to red"	"Caladenia footeana"
35	"Petals and sepals predominantly white, cream or yellow"	36
36	"Petals and sepals creamy yellow to yellow"	37
36	"Petals and sepals white to cream"	38
37	"Labellum creamy yellow with faint red stripes. Flowering July–early September. Woodlands between Mogumber and Kendenup"	"Caladenia xantha"
37	"Labellum white with prominent red stripes. Flowering October–early December. Coastal heath between Yallingup and William Bay"	"Caladenia abbreviata"
38	"Hairs on petal and sepal apices hemispherical to shortly cylindrical. Salt lake margins in the central wheatbelt"	"Caladenia melanema"
38	"Hairs on petal and sepal apices elongate-cylindrical. Calcareous soils in coastal areas"	39
39	"Leaf >1/2 the length of scape; labellum <9 mm long, the apex prominently recurved"	"Caladenia bicalliata"
39	"Leaf <1/2 the length of scape; labellum >10 mm long, the apex projecting forwards or scarcely recurved"	"Caladenia evanescens"
40	"Labellum wholly dark red, rarely with cream near base, lacking pale red, pink or brown stripes and markings"	41
40	"Labellum predominantly cream or yellow with pale red, pink or brown stripes and markings"	43
41	"Sepals 5–10 cm long; labellum >10 mm long"	"Caladenia filifera"
41	"Sepals 4–6.5 cm long; labellum <10 mm long"	42
42	"Flowers variably red or deep pink, rarely yellow or white; lateral sepals >5 cm long; labellum >7 mm long"	"Caladenia dundasiae"
42	"Flowers dark red, never deep pink, yellow or white; lateral sepals <5 cm long; labellum <6 mm long"	"Caladenia erythrochila"
43	"Labellum with entire margins in the basal 2/5; lamina narrowly rhomboidal; hairs on petal and sepal apices <0.2 mm long, inconspicuous to the naked eye"	"Caladenia denticulata"
43	"Labellum with entire margins in the basal 1/3; lamina rhomboidal (rarely narrowly); hairs on petal and sepal apices >0.2 mm long, conspicuous to the naked eye"	44
44	"Flowering June–early (rarely mid-) August"	45
44	"Flowering mid- (rarely early) August–December"	47
45	"Leaf up to 12 mm wide, usually >1/2 the length of the scape. Coastal areas between Windy Harbour and Walpole"	"Caladenia meridionalis"
45	"Leaf up to 4 mm wide, usually <1/2 the length of the scape. Inland areas between Tenterden and Mullewa"	46
46	"Flowers variably white to pinkish red; lateral sepals 6–9 cm long. Mallee woodlands and shrublands, often around the margins of salt lakes"	"Caladenia exilis"
46	"Flowers uniformly white; lateral sepals 4–6.5 cm long. Forests and woodlands, never around the margins of salt lakes"	"Caladenia hiemalis"
47	"Flowering mid-October–December"	48
47	"Flowering mid-(rarely early) August–early October"	49
48	"Petals and sepals cream; lateral sepals <5.5 cm long, arching outwards and downwards, becoming pendulous. Flowering mid-October–early November. West of York and Brookton"	"Caladenia postea"
48	"Petals and sepals pale lemon yellow, more rarely cream; lateral sepals >6 cm long, obliquely descending, never pendulous. Flowering mid-November–early December. West of Mt Barker to the Stirling Range"	"Caladenia ultima"
49	"Leaf 4–10 mm wide, laterally flattened, rarely somewhat revolute; petals and lateral sepals spreading horizontally to obliquely descending, rarely pendulous"	50
49	"Leaf 2–5 mm wide, laterally somewhat revolute, rarely flattened; petals and lateral sepals obliquely descending becoming pendulous"	53
50	"Labellum lamina calli dull on top. Boxwood Hill to Israelite Bay and northward to Balladonia"	"Caladenia horistes"
50	"Labellum lamina calli glossy on top. Hyden to Nerren Nerren Station and eastward to Coolgardie"	51
51	"Flowers bright white; labellum >10 mm wide. Predominantly associated with granite outcrops"	"Caladenia incensa"
51	"Flowers dull white to pale yellow; labellum <10 mm wide. Predominantly associated with banded ironstone formations"	52
52	"Petals and lateral sepals obliquely descending, sometimes pendulous; labellum 8–10 mm wide; lamina calli usually creamy yellow. Perenjori to near Paynes Find"	"Caladenia petrensis"
52	"Petals and lateral sepals spreading horizontally to obliquely descending, ever pendulous; labellum 6–9 mm wide; lamina calli usually creamy white. Diemals Station to Southern Cross"	"Caladenia saxicola"
53	"Labellum >12 mm wide"	54
53	"Labellum <12 mm wide"	55
54	"Flowers red or yellow, rarely cream with dark red stripes and markings; labellum lamina with dark red stripes"	"Caladenia chapmanii"
54	"Flowers cream with pale red stripes and markings; labellum lamina with pale red stripes"	"Caladenia nobilis"
55	"Labellum <5 mm wide"	56
55	"Labellum >5 mm wide"	57
56	"Flowers predominantly white; sepals >3 mm wide. Woodlands and shrublands between Kondinin and Madura"	"Caladenia microchila"
56	"Flowers variably creamy yellow, pale yellow or red; sepals <2 mm wide. Forests between Collie and Frankland"	"Caladenia perangusta"
57	"Gaps between the labellum marginal calli greater than width of calli"	58
57	"Gaps between the labellum marginal calli smaller or equal to width of calli"	59
58	"Labellum with dark red or brown stripes, the apex projecting forwards or scarcely recurved"	"Caladenia caesarea"
58	"Labellum with pale red or brown stripes, the apex prominently recurved"	"Caladenia luteola"
59	"Labellum pale yellow to golden yellow with red stripes and suffusions; lamina calli pale yellow to pure white, usually lacking pink markings on apices"	60
59	"Labellum cream with red stripes and suffusions; lamina calli cream, usually with pink markings on apices"	61
60	"Petals and lateral sepals arching outwards, becoming pendulous; sepals <6 cm long. Forests and woodlands between Mogumber and Kendenup"	"Caladenia xantha"
60	"Petals and lateral sepals spreading horizontally to obliquely descending, never pendulous; sepals >6 cm long. Shrublands and mallee heath between Northampton and Mullewa"	"Caladenia pluvialis"
61	"Petals and sepals white or more rarely pale yellow; labellum lamina calli slender, erect, white or cream, usually with pink suffusions on apices"	62
61	"Petals and sepals variably dark red, pink, brownish yellow, yellow or cream; labellum lamina calli either squat and flattened or slender and erect, rarely with pink suffusions on apices"	70
62	"Labellum <7 mm wide"	63
62	"Labellum >7 mm wide"	67
63	"Labellum rhomboidal in outline. Often grows on the margins of salt lakes"	"Caladenia exilis"
63	"Labellum linear-rhomboidal to narrowly triangular in outline. Never grows on the margins of salt lakes"	64
64	"Labellum lamina calli in 2 double longitudinal rows. North-west of Northampton"	"Caladenia bigeminata"
64	"Labellum lamina calli in 2 single longitudinal rows. South and south-east of Northampton"	65
65	"Lateral sepals >3 mm wide; labellum >6 mm wide"	"Caladenia pluvialis"
65	"Lateral sepals <3 mm wide; labellum <6 mm wide"	66
66	"Flowers creamy white, more rarely pale yellow. Lateritic hills between Wubin and Norseman"	"Caladenia paradoxa"
66	"Flowers pale yellow, more rarely creamy white. Woodlands and forests between Collie and Rocky Gully"	"Caladenia validinervia"
67	"Leaf >5 mm wide. Inland areas between Perenjori and Bonnie Rock"	"Caladenia remota"
67	"Leaf <5 mm wide. Western wheatbelt to near coast"	68
68	"Petals and sepals >8 cm long, usually pendulous"	"Caladenia pendens"
68	"Petals and sepals <8 cm long, rarely pendulous"	69
69	"Labellum >8 mm wide. Well-drained sandy soils"	"Caladenia vulgata"
69	"Labellum <8 mm wide. Seasonally wet sandy-clay soils"	"Caladenia fluvialis"
70	"Labellum >11 mm wide"	71
70	"Labellum <11 mm wide"	72
71	"Flowers pale yellow, lacking prominent red markings; labellum lamina calli glossy on top, broadly anvil-shaped. Flowering August–early October"	"Caladenia straminichila"
71	"Flowers variably dark red, pink or cream with prominent red markings; labellum lamina calli dull on top, narrowly anvil-shaped. Flowering mid-September–late October"	"Caladenia polychroma"
72	"Petals and sepals pale to bright lemon yellow. Northampton to Nerren Nerren Station"	"Caladenia elegans"
72	"Petals and sepals cream, white, pale yellow, brownish yellow or red. South and south-east of Geraldton"	73
73	"Flowers pale brownish yellow. Green Range area east of Manypeaks"	"Caladenia fuscolutescens"
73	"Flowers dark red, pink, pale yellow or cream. North, north-west and north-east of Green Range area"	74
74	"Labellum <9 mm wide"	75
74	"Labellum >9 mm wide"	79
75	"Petals and lateral sepals pendulous"	76
75	"Petals and lateral sepals spreading horizontally to obliquely descending, rarely pendulous"	77
76	"Labellum lamina calli dull on top, broadly anvil-shaped"	"Caladenia pulchra"
76	"Labellum lamina calli glossy on top, narrowly anvil-shaped"	"Caladenia erythronema"
77	"Labellum with faint pinkish red to red stripes and markings. Bunbury to Arrowsmith"	"Caladenia occidentalis"
77	"Labellum with prominent red stripes and markings. Western wheatbelt to Goldfields"	78
78	"Petals and lateral sepals 4–6 cm long, obliquely descending, never pendulous. Paynes Find to Norseman"	"Caladenia dimidia"
78	"Petals and lateral sepals 5–9 cm long, prominently down-curved, often pendulous. Nyabing to Mukinbudin"	"Caladenia erythronema"
79	"Flowers white to cream; petals and lateral sepals prominently down-curved, becoming pendulous"	"Caladenia pendens"
79	"Flowers pale yellow; petals and lateral sepals obliquely descending, never pendulous"	"Caladenia straminichila"
80	"Sepals short, lacking swollen apical osmophores and not prominently hirsute or finely acute"	81
80	"Sepals long with swollen apical osmophores or prominently hirsute and finely acute"	83
81	"Labellum ovate with numerous filiform marginal calli"	"Caladenia discoidea"
81	"Labellum trilobed with few thickened marginal calli"	82
82	"Flowers yellow, rarely white, usually with prominent red markings"	"Caladenia flava"
82	"Flowers pink, rarely white, lacking red markings"	"Caladenia latifolia"
83	"Lateral sepals with swollen apical osmophores"	84
83	"Lateral sepals lacking swollen apical osmophores"	130
84	"Lateral sepals spreading horizontally or obliquely descending at first, then prominently falcate"	85
84	"Lateral sepals spreading horizontally or obliquely descending for entire length, never prominently falcate"	88
85	"Labellum with filiform, horizontally spreading marginal calli"	"Caladenia lobata"
85	"Labellum with slightly thickened, erect marginal calli"	86
86	"Labellum broader than long, white adjacent to the dark red apex; marginal calli to 10 mm long"	"Caladenia longifimbriata."
86	"Labellum longer than broad, green adjacent to the dark red apex; marginal calli to 8 mm long"	87
87	"Labellum lamina calli stopping short of the dark red apex; marginal calli to 8 mm long"	"Caladenia falcata"
87	"Labellum lamina calli reaching and sometimes extending onto the dark red apex; marginal calli to 5 mm long"	"Caladenia attingens"
88	"Petals usually with swollen apical osmophores covered in hemispherical glands, rarely with a long-acuminate apex not covered in hemispherical glands"	89
88	"Petals with a long-acuminate apex lacking swollen apical osmophores, not covered in hemispherical glands"	101
89	"Labellum >11 mm wide"	90
89	"Labellum <11 mm wide"	95
90	"Labellum lamina calli aggregated into a single longitudinal row"	"Caladenia longiclavata"
90	"Labellum lamina calli in 4 or more distinct longitudinal rows"	91
91	"Petals obliquely descending, then often pendulous"	"Caladenia heberleana"
91	"Petals obliquely ascending, more rarely obliquely descending, never pendulous"	92
92	"Flowering mid-October–December. Southern forests between Dunsborough and Albany"	93
92	"Flowering August–early October. Swan Coastal Plain between Lancelin and Yarloop, or southern heathlands from Fitzgerald River National Park to east of Esperance"	94
93	"Flowers predominantly white; apical osmophores on petals and sepals scarcely swollen; labellum apex cream"	"Caladenia lodgeana"
93	"Flowers predominantly red or green; apical osmophores on petals and sepals prominently swollen; labellum apex dark red"	"Caladenia brownii"
94	"Petals obliquely ascending; apical osmophores on sepals light yellowish brown, noticeably swollen, usually >1 mm diam. Southern heathlands from Fitzgerald River National Park to east of Esperance"	"Caladenia decora"
94	"Petals spreading horizontally to somewhat down-curved, never obliquely ascending; apical osmophores on sepals light brown, scarcely swollen, usually <1 mm diam. Swan Coastal Plain between Lancelin and Yarloop"	"Caladenia arenicola"
95	"Longest labellum marginal calli >7 mm long. Flowering late November–January"	"Caladenia corynephora"
95	"Longest labellum marginal calli <6 mm long. Flowering August–October"	96
96	"Petals erect; labellum lamina calli arranged in 2 pairs of longitudinal rows with a distinct gap between them"	"Caladenia arrecta"
96	"Petals spreading horizontally to obliquely descending; labellum lamina calli arranged in closely adjacent longitudinal rows, lacking a distinct gap between them"	97
97	"Labellum apex projecting outwards or scarcely recurved; base of lamina white. Heathlands north of Geraldton and granite outcrops east of Corrigin"	98
97	"Labellum apex prominently recurved; base of lamina creamy yellow to greenish yellow. Forests and adjacent wheatbelt from near Perth and southward"	99
98	"Labellum <14 mm long; lamina calli to 1.5 mm tall; column <13 mm tall. Breakaways and hills between Geraldton and the Murchison River"	"Caladenia hoffmanii"
98	"Labellum >15 mm long; lamina calli to 3 mm tall; column >14 mm tall. Granite outcrops between Karlgarin and Dragon Rocks"	"Caladenia graniticola"
99	"Labellum marginal calli <2 mm long"	"Caladenia ensata"
99	"Labellum marginal calli >2 mm long"	100
100	"Petals and lateral sepals obliquely descending, never pendulous; apical osmophores on petals and sepals about 1/3 the length of the lamina"	"Caladenia longiclavata"
100	"Petals and lateral sepals steeply descending, becoming pendulous; apical osmophores on petals and sepals about 1/2 the length of the lamina"	"Caladenia magniclavata"
101	"Labellum apex pale, the same colour as the basal portion of the lamina"	102
101	"Labellum apex dark red or dark pink, contrasting with the pale basal portion of the lamina"	104
102	"Lateral sepals >5.5 cm long, usually cream and often with pale pink suffusions"	"Caladenia interjacens"
102	"Lateral sepals <5.5 cm long, usually pale yellow, more rarely cream with pale pink suffusions"	103
103	"Lateral sepals >4 cm long. Margaret River to Yallingup"	"Caladenia busselliana"
103	"Lateral sepals <4 cm long. Collie area"	"Caladenia leucochila"
104	"Labellum lamina calli aggregated into a single broad longitudinal row of often closely packed calli or 2–5 longitudinal rows lacking distinct gaps between the rows"	105
104	"Labellum lamina calli in 4 or more longitudinal rows with distinct gaps between the rows"	111
105	"Lateral sepals <2.5 cm long; labellum <8 × <6 mm"	106
105	"Lateral sepals >2.5 cm long; labellum >14 × >6 mm"	107
106	"Labellum marginal calli splayed downwards"	"Caladenia plicata"
106	"Labellum marginal calli splayed upwards"	"Caladenia williamsiae"
107	"Longest labellum marginal calli <3 mm long. Busselton to Augusta"	"Caladenia rhomboidiformis"
107	"Longest labellum marginal calli >4 mm long. North of Perth and east of Nannup"	108
108	"Labellum lamina calli in a dense longitudinal row >4 mm wide.Jurien Bay to Dongara"	"Caladenia crebra"
108	"Labellum lamina calli in an open longitudinal row <3 mm wide. Yarloop to Israelite Bay"	109
109	"Labellum apex projecting forwards or scarcely recurved; lamina calli in 2 longitudinal rows"	"Caladenia graminifolia"
109	"Labellum apex prominently recurved; lamina calli in 3–5 longitudinal rows"	110
110	"Labellum scarcely trilobed, longer than broad, yellowish green adjacent to the dark red apex. Yarloop to Albany"	"Caladenia radiata"
110	"Labellum prominently trilobed, broader than long, white adjacent to the dark red apex. Jerramungup to Esperance"	"Caladenia longifimbriata"
111	"Petals and sepals pale to dark pink or rarely reddish pink"	112
111	"Petals and sepals white, greenish yellow, brownish red or yellowish cream with red suffusions or more rarely completely red"	115
112	"Petals and sepals reddish pink; apical osmophores light brown, usually about 1 mm diameter"	"Caladenia applanata"
112	"Petals and sepals pale to dark pink or rarely pale red; apical osmophores greyish pink, usually <1 mm diam."	113
113	"Petals and sepals usually deep pink; column <16 mm tall; the basal labellum lamina pale to deep pink. Tone River area"	"Caladenia winfieldii"
113	"Petals and sepals usually pale pink or pale red; column >16 mm tall; the basal labellum lamina white to pale pink. Yallingup to east of the Porongurup Range"	114
114	"Lateral sepals obliquely descending, never pendulous; apical osmophores >20 mm long; petals 3–3.5 cm long. Well-drained sands in near-coastal areas between Yallingup and William Bay"	"Caladenia gardneri"
114	"Lateral sepals obliquely descending to down-curved, sometimes pendulous; apical osmophores >30 mm long; petals 3–5.5 cm long. Winter-wet clay loams between Lake Muir and the Porongurup Range"	"Caladenia startiorum"
115	"Labellum lamina calli not extending onto the red apex"	116
115	"Labellum lamina calli extending onto the red apex"	118
116	"Lateral sepals brownish red; labellum apex prominently recurved, marginal calli usually >5 mm long"	"Caladenia ferruginea"
116	"Lateral sepals greenish yellow; labellum apex scarcely recurved, marginal calli usually <5 mm long"	117
117	"Lateral sepals >4.5 cm long; labellum greenish yellow with a red apex. Dunsborough to Northcliffe"	"Caladenia infundibularis"
117	"Lateral sepals <4 cm long; labellum white with a pinkish apex. Albany to Cheyne Beach"	"Caladenia granitora"
118	"Labellum marginal calli thickened, stout, usually <5 mm long"	119
118	"Labellum marginal calli slender, filiform, usually >5 mm long"	123
119	"Petals and sepals white, rarely suffused pink; labellum marginal calli usually <2 mm long"	"Caladenia nivalis"
119	"Petals and sepals greenish yellow with red-brown markings; labellum marginal calli usually >2 mm long"	120
120	"Petals and sepals usually with prominent red markings; labellum lamina flattened in TS near the base. Near-coastal calcareous soils"	121
120	"Petals and sepals usually with inconspicuous brownish red markings; labellum lamina crescentic in TS near the base. Inland acidic soils"	122
121	"Flowers >6 cm across; labellum marginal calli splayed horizontally outwards. Flowering September–mid-October"	"Caladenia applanata"
121	"Flowers <6 cm across; labellum marginal calli upswept. Flowering late October–November"	"Caladenia ambusta"
122	"Dorsal sepal 4–6 cm long; labellum broadly pear-shaped; lamina 17–25 × 8–16 m. Winter-wet clay loams between Gingin and Gracetown"	"Caladenia paludosa"
122	"Dorsal sepal 3–4.5 cm long; labellum narrowly pear-shaped; lamina 15–20 × 7–12 mm. Well-drained gravelly sands near Cape Naturaliste"	"Caladenia viridescens"
123	"Labellum apex noticeably channelled; marginal calli 4–15 mm long, sometimes bifurcate"	"Caladenia huegelii"
123	"Labellum apex not noticeably channelled; marginal calli 2–12 mm long, never bifurcate"	124
124	"Lateral sepals with slightly swollen apical osmophores"	125
124	"Lateral sepals with prominently swollen apical osmophores"	126
125	"Flowers predominantly greenish cream or yellowish green with red suffusions; labellum marginal calli 2–12 mm long. Near-coastal areas on yellow Karrakatta sands"	"Caladenia georgei"
125	"Flowers predominantly red with yellowish green suffusions; labellum marginal calli 2–8 mm long. Inland areas on grey Bassendean sands"	"Caladenia arenicola"
126	"Lateral sepals <5 cm long"	127
126	"Lateral sepals >5 cm long"	128
127	"Lateral sepals >3 cm long. Deep sand in near-coastal areas between Cape Naturaliste and the Warren River"	"Caladenia thinicola"
127	"Lateral sepals <2 cm long. Lateritic ridges near Brookton"	"Caladenia williamsiae"
128	"Scape 35–70 cm tall; petals and sepals greenish yellow, lacking red suffusions (never red, reddish pink or reddish yellow); petals lacking swollen apical osmophores. South-west of Donnybrook"	"Caladenia procera"
128	"Scape 25–50 cm tall; petals and sepals red, reddish pink, reddish yellow, or greenish yellow with red suffusions; petals sometimes with swollen apical osmophores. Cataby to Boyup Brook and east of Ongerup"	129
129	"Petals and sepals usually red or reddish pink; petals often with swollen apical osmophores. Fitzgerald River National Park to Cape Arid National Park"	"Caladenia decora"
129	"Petals and sepals usually yellow or yellowish green with red suffusions; petals lacking swollen apical osmophores. Fitzgerald River National Park to Boyup Brook and north to Cataby"	"Caladenia pectinata"
130	"Labellum apex dark red or dark pink, contrasting with the pale basal portion of the lamina"	131
130	"Labellum apex pale, the same colour as the basal portion of the lamina"	136
131	"Petals and sepals uniformly pink; labellum apex pink"	"Caladenia harringtoniae"
131	"Petals and sepals white, cream or greenish yellow with red markings; labellum apex dark red"	132
132	"Sepals <3.5 cm long; labellum apex projecting forward or scarcely recurved"	133
132	"Sepals >5 cm long; labellum apex prominently recurved"	134
133	"Labellum <14 mm long; lamina calli 1–1.5 mm tall; column <13 mm tall. Breakaways and hills between Geraldton and the Murchison River"	"Caladenia hoffmanii"
133	"Labellum >15 mm long; lamina calli 1–3 mm tall; column >14 mm tall. Granite outcrops between Karlgarin and Dragon Rocks"	"Caladenia graniticola"
134	"Labellum 8–11 mm wide with marginal calli <4 mm long"	"Caladenia uliginosa"
134	"Labellum 10–17 mm wide with marginal calli >5 mm long"	135
135	"Lateral sepals >13 cm long; labellum 25–35 mm long. Dunsborough to Karridale"	"Caladenia excelsa"
135	"Lateral sepals <10 cm long; labellum 17–27 mm long. Gingin to Leeman, and Capel area"	"Caladenia loreus"
136	"Flowers pale lemon yellow to pale green or greenish yellow, lacking red or pinkish markings"	137
136	"Flowers creamy white, usually with red or pinkish markings"	139
137	"Lateral sepals spreading horizontally, >5 mm wide near base; labellum 10–14 mm wide"	"Caladenia citrina"
137	"Lateral sepals down-curved to pendulous, <5 mm wide near base; labellum 7–11 mm wide"	138
138	"Flowers pale lemon yellow. Flowering late November–January"	"Caladenia pholcoidea"
138	"Flowers pale yellow or greenish yellow. Flowering September–mid-October"	"Caladenia swartsiorum"
139	"Flowers white with faint pink markings; labellum marginal calli often bifurcating"	"Caladenia speciosa"
139	"Flowers white with prominent red markings; labellum marginal calli rarely bifurcating"	140
140	"Flowers often with prominent red or pinkish markings. Flowering late November–January"	"Caladenia serotina"
140	"Flowers usually creamy white, rarely with red or pinkish markings. Flowering August–early November"	141
141	"Petals and sepals spreading horizontally to down-curved, never pendulous; labellum marginal calli 2–5 mm long"	142
141	"Petals and sepals down-curved to pendulous; labellum marginal calli 4–14 mm long"	143
142	"Labellum <5 mm wide; petals and sepals >5 cm long. Forest areas between Mt Barker and Bridgetown"	"Caladenia christineae"
142	"Labellum >7 mm wide; petals and sepals <5 cm long. Salt lake margins and moist depressions between Salmon Gums and Mt Ragged"	"Caladenia cruscula"
143	"Lateral sepals 10.5–19 cm long; labellum >30 × >15 mm"	"Caladenia splendens"
143	"Lateral sepals 3–15 cm long; labellum <30 × <15 mm"	"Caladenia longicauda"