1	"Stamens on one side of carpels; carpels 2, hairy or glabrous (H. obtusibracteata)"	2
1	"Stamens all around carpels; carpels 3, glabrous"	22
2	"Mature flowers sessile or subsessile"	3
2	"Mature flowers conspicuously stalked"	15
3	"Leaves sharply pointed (pungent); FR, EP, NL, MU, SL, KI, SE"	"Hibbertia exutiacies"
3	"Leaves blunted, not sharply pointed"	4
4	"Leaves clustered at their base of flowers (i.e. floral leaves or hypsophylloids) that are a different shape and size to that of the cauline leaves"	5
4	"Leaves at the base of flowers and cauline leaves similar in shape and size (i.e. flowers without distinct floral leaves clustered at the base)"	11
5	"Cauline leaves with central vein not broadened and scarcely visible unders stellate hairs; SE"	"Hibbertia sessiliflora"
5	"Cauline leaves with central vein broadened and clearly visible"	6
6	"Abaxial midrib of the cauline leaves not visible up to the leaf apex"	7
6	"Abaxial midrib of the cauline leaves distinctly visible up to the leaf apex"	8
7	"Adaxial surface of young cauline leaves with short stiff straight simple hairs; MU, ?SL, KI, SE"	"Hibbertia sericea"
7	"Adaxial surface of young cauline leaves with long fine (often silky) straight simple hairs; SL, KI"	"Hibbertia villifera"
8	"Mature cauline leaves with adaxial surface with a dense indumentum, most hairs very short fascicled hairs except for the rare long straight simple hair that wear off with age; FR, EP, NL, MU, SL, KI, SE"	"Hibbertia crinita"
8	"Mature cauline leaves with adaxial surface green to dark green with typically moderately to sparsely hairy or nearly glabrous, most of the hairs straight simple hairs (or surface ± glabrous)"	9
9	"Branches without (or rarely with a few) scattered long simple hairs below flowers; terminal flowers 1, or up to 3 but then in loose clusters; EP, YP"	"Hibbertia platyphylla subsp. platyphylla"
9	"Branches more or less densely covered with long simple hairs; terminal flowers (1-)2-5(-15) in usually dense clusters"	10
10	"Old cauline leaves straight and if recurved then from petiole; undersurface of cauline leaves not visible between revolute margins and central vein or if visible then leaves usually longer than 8 mm;  EP, YP"	"Hibbertia platyphylla subsp. major"
10	"Old cauline leaves recurved along their whole length; undersurface of cauline leaves exposed between revolute margins and central vein; leaf length (2.2-)3.6-7.5(-11.4) mm; KI"	"Hibbertia platyphylla subsp. halmaturina"
11	"Petals numbering 1 or 2, stamens numbering 1 or 2; SL"	"Hibbertia hirsuta"
11	"Petals numbering 5, stamens numbering > 3"	12
12	"Young stems villous with long, silky hairs; EP, KI"	"Hibbertia paeninsularis"
12	"Young stems glabrous or pubescent with short hairs"	13
13	"Axils of leaves with an erect tuft of hairs 0.5-2 mm long; leaves and young branches with straight, simple and fascicled hairs; NL, SL, SE"	"Hibbertia riparia"
13	"Axils of leaves with an erect tuft of hairs < 0.4 mm long; leaves and young branches with fascicled hairs, rarely also with simple, hooked hairs"	14
14	"Large stellate hairs on the outer calyx lobes with unequally long bristles 3 to 8 times longer than basal ones; small hairs on branches and calyx dense, erect-spreading with subequal arms; EP, YP, SL, MU, SE, KI"	"Hibbertia setifera"
14	"Large stellate hairs on the outer calyx lobes with subequal branches up to 2 times longer than the basal ones; small hairs on branches, leaves and calyx sparse, spreading or if dense then with unequally long arms; EP, MU, YP, SL, KI, SE"	"Hibbertia devitata"
15	"Leaves with a pungent terminal point (sometimes wearing off); carpels glabrous; KI"	"Hibbertia obtusibracteata"
15	"Leaves with a blunt acute to rounded apex; carpels hairy"	16
16	"All or some stamens erect (i.e. not tightly appressed to the carpel surface and appear like a 'hand-of-bananas')"	17
16	"All stamens appressed to carpel surface, appearing like a 'hand-of-bananas'"	20
17	"Prostrate or procumbent shrublets < 20 cm high; SL"	"Hibbertia tenuis"
17	"Erect or rounded shrubs to c. 1 m high"	18
18	"Fascicles hairs dense on calyx and/or leaves and not on distinct stalks or bumps; NL, SL, SE"	"Hibbertia australis"
18	"Fascicled hairs sparse or moderate on calyx and/or leaves and on distrinct fleshy stalks or bumps"	19
19	"Bracts more than half the length of the outer calyx lobes, 5.5-7 mm long; leaves 0.6-0.8 mm wide; SL"	"Hibbertia glebosa subsp. glebosa"
19	"Bracts less than half the length of the outer calyx lobels, 4.3-5.2 mm long; leaves 1-2 mm wide; KI"	"Hibbertia glebosa subsp. oblonga"
20	"Erect shrubs to 1.5 m high; leaves greyish; leaf and sepal indumentum densely hairy"	"Hibbertia cinerea"
20	"Small sprawling, decumbent or prostrate shrublets < 30 cm high; leaves green; leaf and sepal indumentum sparsely to moderately hairy"	21
21	"Leaves obovate; petals pale-yellow, semi-closed at anthesis; styles 1.4-1.7 mm long; YP, SL, KI, SE"	"Hibbertia pallidiflora"
21	"Leaves ovate to oblong; petals bright yellow, widely spreading at anthesis; styles 0.3-0.6 mm long; KI, SL"	"Hibbertia radians"
22	"Stamens numbering > 20"	23
22	"Stamens numbering < 15"	24
23	"Stamens number > 60, in a ring around the carpels; NW"	"Hibbertia glaberrima"
23	"Stamens number < 40, in clusters between the carpels; NU, GT"	"Hibbertia crispula"
24	"Leaves semi-terete, fascicled on short-shoots; KI, SE"	"Hibbertia fasciculata"
24	"Leaves flattened or in-curved, not fascicled on short-shoots; GT, EP, NL, MU, YP, SL, KI, SE"	"Hibbertia virgata"