1	"Plant not rhizomatous, usually with stilt roots"	2
1	"Plant rhizomatous, never with stilt roots"	8
2	"Leaf laminae reflexed (90–140 degrees), not overlapping"	"Calectasia pignattiana"
2	"Leaf laminae not reflexed (on mature branchlets) (0–45 degrees)"	3
3	"Leaf lamina densely pilose (northern kwongan)"	"Calectasia browneana"
3	"Leaf lamina glabrous (margins often scabrous)"	4
4	"Leaf lamina without a mucro, apex obtuse to bluntly apiculate"	"Calectasia obtusa"
4	"Leaf lamina with a pungent mucro over 0.2 mm long"	5
5	"Leaf lamina 1.0–1.6 mm wide; staminal filaments 2.6–3.0 mm long; facultative stilting species (Albany)"	"Calectasia cyanea"
5	"Leaf lamina 0.4–0.7 mm wide; staminal filaments 1.0–2.2 mm long; obligate stilting species"	6
6	"Robust; perianth tube 9.9–10.1 mm long, lobes 10.2–12.2 mm long; young leaves rarely appressed (northern sandplain)"	"Calectasia palustris"
6	"Slender; perianth tube 5.7–6.9 mm long, lobes 8.1–9.5 mm long; young leaves appressed"	7
7	"Perianth tube prominently ribbed when dry (Perth)"	"Calectasia elegans"
7	"Perianth tube not prominently ribbed when dry (Stirling Range–Cape Riche)"	"Calectasia gracilis"
8	"Leaf lamina hispid above"	"Calectasia hispida"
8	"Leaf lamina glabrous above (margin often scabrous)"	9
9	"Rhizome long, decumbent (South Australia, Victoria)"	"Calectasia intermedia"
9	"Rhizome short, compact (Western Australia)"	10
10	"Anther apex attenuate, base constricted with a short skirt, not turning red with age; perianth lobes 8.1–12.5 x 1.3–2.1 mm, thinly coriaceous"	"Calectasia keigheryi"
10	"Anther apex obtuse to emarginate, base cordate"	11
11	"Bracts white, papery, lacking vestigial leaf lamina perianth lobes 8.7–12.6 x 2.0–3.0 mm, chartaceous, aging white; anthers turning red with age"	"Calectasia narragara"
11	"Bracts brown-purple, often with vestigial leaf lamina; perianth lobes 11.9–21.5 x 2.0–4.7 mm, thinly coriaceous, aging pale brown and dark red; anthers not turning red with age"	12
12	"Rhizome spreading, ‘looping’; stems to 35 cm; leaf blades 0.4–0.6 mm wide; perianth tube 9.4–10.2 mm long, pilose in lower 1/5; staminal filaments 2.8–3.7 mm long; anthers 4.1–5.8 mm long (south coast)"	"Calectasia demarzii"
12	"Rhizome short, compact or somewhat spreading but not 'looping'; stems to 45–65 cm; leaf blades 0.6–1.2 mm wide; perianth tube (8–)9.2–13.5 mm long, pilose in lower 1/4–full length; staminal filaments 2.7–5.2 mm long; anthers 3.5–6.7 mm long"	13
13	"Rhizome compact, robust; stems to 65 cm high, robust; perianth tube pilose in lower 1/2 to full length; staminal filaments 2.7–4.2 mm long (Kalbarri to Cape Arid)"	"Calectasia valida"
13	"Rhizome somewhat spreading, slender; stems to 45–60 cm, slender; perianth tube pilose in lower 1/4–1/3; staminal filaments 3.5–5.2 mm long"	14
14	"Stems to 60 cm; perianth tube pilose in lower 1/3 with white hairs; perianth lobes 3.5–4 mm wide; staminal filaments 3.5–4.1 mm long; anthers 5–5.5 mm long (Perth area)"	"Calectasia grandflora"
14	"Stems to 45 cm; perianth tube pilose in lower 1/4 with golden to silvery hairs; perianth lobes 2.6–3.0 mm wide; staminal filaments 4.6–5.2 mm long; anthers 6.2–6.6 mm long (Cape Arid)"	"Calectasia jubilaea"