1 "Plants with well-developed leaves; petals yellow or orange" 2 1 "Plants leafless or nearly so; petals white, yellow, pink or red" 175 2 "Ovary covered with peltate scales" 3 2 "Ovary without peltate scales (glabrous to hairy)" 19 3 "Style base usually with peltate scales or rarely fascicled hairs; anthers usually unequal, (1.3–)1.5–2.5 (–4.8) mm long; flower buds ellipsoidal with acute rarely obtuse inner calyx lobes" "Hibbertia echiifolia subsp. echiifolia" 3 "Style base without hairs or scales; anthers subequal, usually (0.6–) 0.8–1.3 (–1.5) mm long; flower buds spherical to pyriform with rounded inner calyx lobes" 4 4 "Undersurface of leaves and branches with rosette-like to cactiform fascicled hairs" 5 4 "Undersurface of leaves (and usually branches) with ciliolate to entire peltate scales" 17 5 "Vestiture on undersurface of leaves less dense than (rarely as dense as) upper surface" "Hibbertia scopata" 5 "Vestiture on undersurface of leaves at least as dense as (usually distinctly denser than) upper surface" 6 6 "Petioles with long spreading hairs" 7 6 "Petioles with short hairs (sometimes appressed)" 10 7 "Pedicels filiform, 0.3–0.4 (–0.5) mm wide" "Hibbertia scabrifolia" 7 "Pedicels strap-like to broadly terete, robust, (0.6–)0.8–1(–1.2) mm wide" 8 8 "Leaf lamina elliptic to elliptic-lanceolate, <3× as long as broad" "Hibbertia oblongata subsp. brevifolia" 8 "Leaf lamina oblong-elliptic, usually >3× longer than broad" 9 9 "Plant hirsute, with long silky fascicled hairs" "Hibbertia mollis" 9 "Plant velvety-pubescent, with short, spreading to appressed fascicled hairs" "Hibbertia oblongata subsp. brevifolia" 10 "Leaf margins recurved to revolute on most leaves" "Hibbertia brevipedunculata" 10 "Leaf margins flat (or unevenly recurved on some leaves)" 11 11 "Plants multistemmed from base" 12 11 "Plants with one to few stems at base (each often much branched above)" 14 12 "Flower buds ellipsoidal, 4.5–6 mm long" "Hibbertia brevipedunculata" 12 "Flower buds ± spherical, 3–4 mm long" 13 13 "Upper leaf surface with stubble-like, short hairs; stamens 30–36" "Hibbertia suffrutescens" 13 "Upper leaf surface velutinous.with velvety hairs; stamens 42–50" "Hibbertia axillaris" 14 "Plants erect-spreading, with rigid-woody branches" "Hibbertia oblongata subsp. brevifolia" 14 "Plants decumbent, with wiry branches" 15 15 "Upper leaf surface with fine hairs each with spreading arms at least twice as long as diameter of tubercle" "Hibbertia oblongata subsp. brevifolia" 15 "Upper leaf surface with coarse hairs, each with reflexed or appressed arms ± as long as diameter of tubercle" 16 16 "Several decumbent branches from thickened base" "Hibbertia suffrutescens" 16 "Spreading shrub to 1 m tall" "Hibbertia oblongata subsp. brevifolia" 17 "Leaf margins ± incurved; distal part of outer calyx lobes spreading to recurved, with scale-like unilaterally enlarged marginal scales" "Hibbertia lepidota" 17 "Leaf margins ± flat or recurved; distal part of outer calyx lobes ± appressed, usually with unilaterally enlarged marginal cilia" 18 18 "Calyx with brownish cilia; leaf axils with a few brown hairs especially near flowers" "Hibbertia echiifolia subsp. echiifolia" 18 "Calyx with pale hairs along margins; leaf axils without brown hairs" "Hibbertia brevipedunculata" 19 "Fertile stamens all on one side of the 2 carpels" 20 19 "Fertile stamens all around the 2-many carpels" 78 20 "Flowers in one-sided, bracteate spike-like inflorescences" 21 20 "Flowers single or clustered in the leaf axils, not in one-sided, bracteate spike-like inflorescences" 28 21 "Stamens 20–50" "Hibbertia ledifolia" 21 "Stamens 8–18" 22 22 "Outer sepals moderately to densely stellate-hairy, with no or few simple hairs" 23 22 "Outer sepals glabrous to pilose, mostly with simple or hooked hairs (stellate hairs, when present, a minor component of the indumentum)" 24 23 "Whole plant (young stems, leaves and sepals) densely stellate-pubescent; stamens 10–12; most staminodes opposite the stamens" "Hibbertia asterella" 23 "Young stems and leaves ±glabrous; stamens 12–16; most staminodes behind the stamens" "Hibbertia capensis" 24 "Abaxial leaf lamina either side of the midrib glabrous" "Hibbertia subglabra" 24 "Abaxial leaf lamina either side of the midrib(may be hidden by the recurved margins) densely stellate-pubescent" 25 25 "Flowers (6–)8–14 per cincinnus, closely spaced; cincinnus bracts distinctly heteromorphic, each flower (except the lowermost) subtended by a ±linear and a broadly ovate to triangular bract" "Hibbertia spicata" 25 "Flowers (1)2–6(–7) per cincinnus, the lowermost at least well separated; cincinnus bracts not distinctly heteromorphic, each flower (except the lowermost) subtended by two ±linear to ovate bracts differing mainly in length" 26 26 "Adaxial leaf lamina and outer sepals quite glabrous" "Hibbertia leptotheca" 26 "Adaxial leaf lamina and/or outer sepals hairy" 27 27 "Adaxial leaf lamina ±glabrous; sepals mostly with hooked hairs" "Hibbertia prolata" 27 "Adaxial leaf lamina pubescent to pilose with simple hairs; sepals with a mix of simple, stellate and hooked hairs" "Hibbertia polystachya" 28 "Carpels pubescent to villous or with a narrow line of hairs along the suture" 29 28 "Carpels glabrous" 74 29 "Carpels glabrous apart from a narrow line of hairs along the suture" "Hibbertia gracilipes" 29 "Carpels with sparse to dense hairs throughout" 30 30 "Leaves linear, very fine and flexible (>40× longer than wide); stamens 17–25; staminodes numerous, forming a row behind the stamens" "Hibbertia hooglandii" 30 "Leaves various, if linear then not very fine and <40× as long as wide; if staminodes form a row behind the carpels then stamens <17" 31 31 "Flowers distinctly (sometimes shortly) pedicellate" 32 31 "Flowers sessile or very nearly so" 62 32 "Leaves distinctly pungent-pointed" 33 32 "Leaves obtuse to acute or apiculate but not pungent" 41 33 "Sepals with scales or scale-like stellate hairs" 34 33 "Sepals glabrous or with hairs, not scales" 35 34 "Leaf with recurved spiny tip" "Hibbertia eatoniae" 34 "Leaf with straight spiny tip" "Hibbertia lepidocalyx" 35 "Leaf tip recurved. Carpels 4-ovulate" "Hibbertia ancistrophylla" 35 "Leaf tip straight, not recurved. Carpels 2-ovulate" 36 36 "Sepals and/or leaves with hooked hairs (sometimes sparse)" 37 36 "Hooked hairs absent" 39 37 "Pedicels and branchlets stellate-hairy; primary bract pungent-pointed" "Hibbertia hamulosa" 37 "Pedicels and branchlets glabrous or nearly so; primary bract acute to attenuate, not pungent-pointed" 38 38 "Sepals obtuse to acute but not spine-tipped; plants much-branched, often cushion-like" "Hibbertia acerosa" 38 "Sepals spine-tipped; plants erect, the flowering stems often little-branched" "Hibbertia abyssus" 39 "Sepals quite glabrous; flowering stems stout, little-branched, thickly clothed with erect, overlapping leaves" "Hibbertia atrichosepala" 39 "Sepals with hairs, at least on the margins; flowering stems branched, not thickly clothed with erect, overlapping leaves" 40 40 "Sepals densely, evenly and finely stellate; leaves distant" "Hibbertia turleyana" 40 "Sepals glabrous to moderately minutely stellate; leaves close-set, usually spreading at right angles to the stem" "Hibbertia ulicifolia" 41 "Staminodes absent" 42 41 "Staminodes present" 43 42 "Leaves and sepals glabrous" "Hibbertia gracilipes" 42 "Leaves and/or sepals with hairs" "Hibbertia ancistrotricha" 43 "Leaf margins tightly recurved right to the prominent midrib, the true margin visible as a pair of pale strips either side of the midrib, at least in young leaves" 44 43 "Leaf margins either not tightly recurved and butting against the midrib or, if so then the true margins hidden and not visible as pale strips" 49 44 "Outer sepals and pedicels glabrous (except sometimes a minute ciliate fringe on the sepals); sepals prominently pale-margined (often glistening when dry)" "Hibbertia lineata" 44 "Outer sepals moderately to densely pubescent usually with at least some hooked hairs, often also with stellate ones; pedicels glabrous or sparsely pubescent with stellate hairs; sepals not prominently pale-margined" 45 45 "Young stems, abaxial surface of petioles, and pedicels glabrous" "Hibbertia depilipes" 45 "Young stems sparsely to moderately pubescent; abaxial surface of petioles moderately to densely and minutely stellate-hairy; pedicels sparsely to moderately stellate-hairy" 46 46 "Leaves rounded in transverse section, usually distinctly tuberculate with evenly scattered tubercles bearing radially stellate hairs at least on young leaves; sepals with distinctly thickened midribs" "Hibbertia verrucosa" 46 "Leaves rounded or angled in transverse section (± flat-topped and with an angle at the apparent leaf margin), smooth or with a row of tubercles along the angle, these bearing forward-directed, simple or few-branched hairs when young; sepals with thickened bases but without distinctly thickened midribs" 47 47 "Sepals lacking hooked hairs (sparsely and minutely stellate-hairy)" "Hibbertia papillata" 47 "Sepals with at least some hooked hairs" 48 48 "Leaves (1.2–)2–4(–8) mm long, usually recurved and retrorse (occasionally longer, straighter and more spreading); usually weak plants often with slender stems ascending through other vegetation; sepals with short hooked hairs usually restricted to or more common at the sepal bases" "Hibbertia microphylla" 48 "Leaves (5–)6–12 mm long, spreading, ±straight except at the apex; erect plants with robust stems; sepals evenly covered with numerous hooked hairs throughout" "Hibbertia polyancistra" 49 "Staminodes lateral to, opposite and behind the stamens" "Hibbertia cockertoniana" 49 "Staminodes all lateral to, or lateral to and opposite, the stamens" 50 50 "Sepal indumentum predominantly stellate" 51 50 "Sepals glabrous or with predominantly simple hairs (sometimes with obscure stellate hairs beneath abundant simple hairs)" 55 51 "Leaves narrowly elliptic to obovate, the undersurface clearly visible" 52 51 "Leaves linear, the margins tightly revolute to the midrib and obscuring the undersurface" 54 52 "Leaf upper surface with twinned tubercle-based hairs; ovules 4 per carpel" "Hibbertia furfuracea" 52 "Leaves upper surface with stellate and/or hooked hairs; ovules 2 per carpel" 53 53 "Leaves glossy dark green, linear to narrowly elliptic, the margins usually strongly recurved, with widely scattered, simple, hooked or stellate tubercle-based hairs; outer sepals sparsely to moderately stellate-hairy usually with at least some long, overtopping simple hairs" "Hibbertia hypericoides subsp. hypericoides" 53 "Leaves dull grey-green, linear and with recurved margins to elliptic with ±flat margins, densely stellate-hairy, the hairs without or with obscure tubercles; outer sepals densely stellate-hairy usually without long, overtopping simple hairs" "Hibbertia hypericoides subsp. septentrionalis" 54 "Sepals sparsely to moderately pubescent with minute, stellate hairs, the midribs not prominent; leaves minutely papillate but not tuberculate" "Hibbertia papillata" 54 "Sepals moderately to densely pubescent with coarse, tubercle-based stellate hairs usually mixed with short, often retrorse, uncinate hairs, the midribs at least on the outer sepals thick and prominent; leaves usually coarsely tuberculate" "Hibbertia verrucosa" 55 "Sepals glabrous to sparsely hairy" 56 55 "Sepals abundantly pilose" 59 56 "Leaf undersurface, between the midrib and the recurved margins, densely stellate-hairy" "Hibbertia hypericoides subsp. hypericoides" 56 "Leaf undersurface, between the midrib and the recurved margins, glabrous or sparsely simple-hairy" 57 57 "Sepals with sparse long hairs; floral bract linear to narrow elliptic" "Hibbertia diamesogenos" 57 "Sepals glabrous or nearly so (inner sepals with minute stellate hairs; floral bract broadly ovate to triangular" 58 58 "Leaves and branchlets with spreading tubercle-based hairs, at least when young; ovules 2 per carpel" "Hibbertia avonensis" 58 "Leaves and branchlets quite glabrous; ovules 3 or 4 per carpel" "Hibbertia stenophylla" 59 "Leaves elliptic to obovate, flat with scarcely recurved margins" "Hibbertia silvestris" 59 "Leaves linear with strongly recurved margins" 60 60 "Leaves and flowers distinctly fasciculate; pedicels and young stems glabrous; leaf undersurface (often obscured between the midrib and the recurved margins) densely stellate-hairy" "Hibbertia fasciculiflora" 60 "Leaves and flowers not distinctly fasciculate; pedicels and young stems pubescent; leaf undersurface (often obscured between the midrib and the recurved margins), glabrous to sparsely simple-hairy" 61 61 "Sepals sparsely to moderately pubescent with +/- colourless hairs" "Hibbertia diamesogenos" 61 "Sepals abundantly pilose with white hairs" "Hibbertia propinqua" 62 "Leaf apex obtuse to acute but not pungent" 63 62 "Leaf apex distinctly pungent" 66 63 "Bracts conspicuous, broad, brown" "Hibbertia crassifolia" 63 "Bracts inconspicuous or leaf-like" 64 64 "Sepals completely glabrous; ovules 3 or 4 per carpel" "Hibbertia stenophylla" 64 "Sepals with sparse to dense tubercle-based stellate hairs; ovules 2 per carpel" 65 65 "Young branchlets glabrous except for sparse, short, crisped white hairs obscured in the leaf axils; adaxial leaf surface obscurely tuberculate, glabrous; leaf apex obtuse, without a tuft of hairs, more or less straight" "Hibbertia robur" 65 "Young branchlets moderately to densely stellate-hairy; adaxial leaf surface with scattered tubercle-based stellate hairs and sometimes with scattered simple or hooked hairs; leaf apex obtuse and terminated by a tuft of minute hairs (especially when young), slightly to moderately recurved" "Hibbertia verrucosa" 66 "Fertile stamens 5" 67 66 "Fertile stamens 8–18" 69 67 "Staminodes absent" "Hibbertia mucronata" 67 "Staminodes 5–10, outside the stamens" 68 68 "Leaves 10–15 mm long, tapering gradually to a straight, pungent point; sepals pale grey-pilose" "Hibbertia charlesii" 68 "Leaves 2–6(–11) mm long, tapering abruptly to a short, excentric mucro; sepals brownish pubescent" "Hibbertia pachyphylla" 69 "Leaf apex distinctly recurved" "Hibbertia ancistrophylla" 69 "Leaf apex straight" 70 70 "Stamens 15–18 (the outmost stamens may be somewhat smaller than the inner), slightly erect and not distinctly curved over the carpels" "Hibbertia proberae" 70 "Stamens 8–11, distinctly curved over the carpels" 71 71 "Sepals with simple hairs throughout" "Hibbertia axillibarba" 71 "Sepals glabrous or stellate-hairy" 72 72 "Midrib of lower leaf surface enlarged, prominent and protruding beyond level of the revolute leaf margins" "Hibbertia carinata" 72 "Midrib of lower leaf surface not unusually enlarged, level with or sunken below the level of the revolute leaf margins" 73 73 "Leaves very thick, almost cylindric 4–12 mm long, tip rounded but with a short hard spine. Sepals 4–7 mm long" "Hibbertia stowardii" 73 "Leaves flat or compressed with recurved margins, mostly 10–25 mm long and gradually tapered at the tip, acute to mucronate. Sepals 6–9 mm long" "Hibbertia aurea" 74 "Flowers distinctly pedicellate" 75 74 "Flowers sessile or subsessile" 76 75 "Pedicel sigmoid, 10–15 mm long; primary bract at the top of the pedicle and immediately below the calyx" "Hibbertia andrewsiana" 75 "Pedicel +/- straight, to 10 mm long; primary bract at the base of or part way up the pedicle" "Hibbertia psilocarpa" 76 "Apex of outermost sepals obtuse" "Hibbertia psilocarpa" 76 "Apex of outermost sepals acute or tapering" 77 77 "Branchlets stout with very short seasonal growth units; leaves (2–)3–5 mm long, 0.8–1.2(–2) mm wide, prominently tuberculate" "Hibbertia tuberculata" 77 "Branchlets long, more or less straight seasonal shoots; leaves 3.5–15 mm long and 0.6–1 mm wide, surface smooth or sometimes with obscure tubercles" "Hibbertia oligantha" 78 "Leaves with a distinct midrib beneath, flat or the margins slightly to strongly revolute (sometimes closely appressed to the midrib)" 79 78 "Leaves without a distinct midrib beneath, terete, flattened or the margins incurved so that the leaf is grooved above" 161 79 "At least some stamens distinctly united into bundles by their filaments" 80 79 "All stamens free or nearly so" 108 80 "Carpels 5" 81 80 "Carpels 3" 90 81 "Leaves pungently acute, uncinate" "Hibbertia uncinata" 81 "Leaves obtuse to acute or acuminate but not pungent and uncinate" 82 82 "Erect shrubs, 1–2.5 m high when mature; leaves ovate, elliptical or obovate, usually with 1 or more pairs of teeth on both sides of the apex" "Hibbertia cuneiformis" 82 "Erect, spreading or decumbent shrubs to 0.5 m high when mature (rarely to 1 m); leaves linear or oblong, without pairs of teeth near apex" 83 83 "Leaves flat, without conspicuously revolute margins" 84 83 "Leaves with loosely to strongly revolute margins" 85 84 "Abaxial leaf surface glabrous (except for leaf base and margin); sepal indumentum 1-layered, with long pilose hairs" "Hibbertia glomerosa var. glomerosa" 84 "Abaxial leaf surface sparsely to moderately hairy; sepal indumentum 2-layered, with long pilose hairs over short felted hairs" "Hibbertia glomerosa var. bistrata" 85 "Bracts conspicuous, broad" 86 85 "Bracts inconspicuous, often narrow or leaf-like" 88 86 "Mature leaves and sepals glabrous" "Hibbertia glabrisepala" 86 "Mature leaves and/or sepals hairy" 87 87 "Outer sepal surface with conspicuously rusty or reddish hairs" "Hibbertia ferruginea" 87 "Outer sepal surface with whitish hairs, not rusty or reddish" "Hibbertia depressa" 88 "Sepals with a prominent, thickened, squarrose apex" "Hibbertia squarrosa" 88 "Sepals acute to acuminate, not with a thickened squarrose apex" 89 89 "Leaves with a distinct narrow sulcus along the midline of the adaxial leaf surface, apex relatively acute" "Hibbertia striata" 89 "Leaves without a distinct narrow sulcus along the midline of the adaxial leaf surface, apex relatively obtuse" "Hibbertia huegelii" 90 "Leaf bases narrow or slightly broadened but not distinctly sheathing or clasping the stems" 91 90 "Leaf bases enlarged, distinctly sheathing or clasping the stems" 106 91 "Bracts conspicuous, broad, brown" 92 91 "Bracts inconspicuous or narrowly triangular, herbaceous or scarious" 97 92 "Leaves linear with margins tightly to loosely revolute (especially young leaves)" 93 92 "Leaves elliptic or obovate, flat and margins not recurved or revolute" 96 93 "Sepals glabrous or with a few apical hairs or marginal cilia; stamens 11 to 12, 9 of which are fused by their filaments in 3 bundles of 3 stamens each" 94 93 "Sepals with short appressed hairs or long silky hairs; stamens 15–30, which are fused by their filaments in 5 bundles of 2–6 stamens per bundle" 95 94 "Leaf apex acute, with hard mucronate tip; apices of all sepals attenuate" "Hibbertia fitzgeraldensis" 94 "Leaf apex obtuse; sepal apices acute or obtuse (sometimes with a small aciculate tip, but not attenuate" "Hibbertia sejuncta" 95 "Sepals with long silky hairs; stamens 25–30" "Hibbertia sericosepala" 95 "Sepals with short appressed hairs; stamens 15–21" "Hibbertia leucocrossa" 96 "Leaves linear to narrowly oblong-obovate, glabrous or sparsely hairy; sepals glabrous or sparsely hairy at the apex or with a marginal cilia" "Hibbertia notibractea" 96 "Leaves oblong, elliptic or obovate, moderately to densely hairy with long, fine and somewhat curled hairs; sepals distinctly hairy with long tangled hairs in at least the upper" "Hibbertia trichocalyx" 97 "Leaves distinctly hairy" 98 97 "Leaves glabrous or with sparse hairs only (apart from the margins which may be minutely ciliolate)" 102 98 "Stamens 18–25(–40), in five bundles each of 3–6 stamens (rarely fewer, but no stamens single)" 99 98 "Stamens usually 11 (rarely more), with three bundles each of 3 (rarely more) stamens and two stamens free" 100 99 "Leaves persistently pubescent; sepals moderately to densely pubescent" "Hibbertia pubens" 99 "Leaves mostly glabrous except when young; sepals glabrous to sparsely pubescent" "Hibbertia leucocrossa" 100 "Leaves elliptical or obovate, flat and without revolute or recurved margins leaving the abaxial surface clearly visible" "Hibbertia priceana" 100 "Leaves linear, margins tightly revolute to the midrib with the abaxial surface obscured or loosely revolute or recurved with the abaxial surface partially obscured" 101 101 "Sepals obtuse to subacute, subequal; anthers narrowly obovate 0.7–0.8 mm long" "Hibbertia helianthemoides" 101 "Sepals all obtuse, the outermost shorter than the inner ones; anthers narrowly oblong, 1–2 mm long" "Hibbertia desmophylla" 102 "Leaves ovate or oblong to elliptic, the margins flat or loosely recurved" 103 102 "Leaves linear and terete or nearly so(sometimes slightly broadened at the apex and obtriangular)" 105 103 "Stamens 15–21, in five bundles" "Hibbertia leucocrossa" 103 "Stamens 10–12, at least some of them free" 104 104 "Leaves all similar, oblong to oblong-elliptic, glabrous, 1.5–4 mm wide" "Hibbertia glomerata subsp. darlingensis" 104 "Leaves sometimes dimorphic, leaves at the base of the flowers ovate to elliptic and 2.5–6.5 mm wide, sometimes with elongated leaves basal to the flowering shoots" "Hibbertia glomerata subsp. ginginensis" 105 "Leaves linear, straight or with a slightly recurved apex" "Hibbertia rupicola" 105 "Leaves slightly broader at the apex and obtriangular, shallowly to deeply sigmoid with a distinctly recurved apex" "Hibbertia hamata" 106 "Flowers on slender stalks" "Hibbertia racemosa" 106 "Flowers sessile or almost so" 107 107 "Floral and stem leaves different, stem leaves narrow; floral leaves broader ovate to elliptic" "Hibbertia vaginata" 107 "Floral and stem leaves all similar, narrow" "Hibbertia subvaginata" 108 "Leaves ericoid (linear or very narrowly ovate, often rather hard-textured and stiff, the margins strongly recurved and abutting each other or the prominent midrib so the true abaxial leaf surface is hidden)" 109 108 "Leaves not ericoid (variously shaped, herbaceous and flexible, flat or with recurved margins that do not tightly abut the midrib so the true abaxial leaf surface is exposed)" 117 109 "Leaves pungent-pointed" 110 109 "Leaves obtuse to acute, not pungent" 115 110 "Sepals and carpels stellate-hairy" 111 110 "Sepals and carpels glabrous" 112 111 "Leaves straight, 10–20 mm long. Sepals 12–16 mm long. Carpels (2)3 with (8)10 ovules" "Hibbertia graniticola" 111 "Leaves curved, 4–8 mm long. Sepals 5–9 mm long. Carpels 2 with 6–8 ovules" "Hibbertia arcuata" 112 "Leaves with distinctly hooked apices" 113 112 "Leaf apices +/- straight" 114 113 "All floral bracts acute to pungent, narrow, not scarious brown" "Hibbertia rostellata" 113 "At least uppermost floral bracts broad, obtuse, scarious brown" "Hibbertia uncinata" 114 "Uppermost floral bracts obtuse" "Hibbertia exasperata" 114 "Uppermost floral bracts acute or apiculate" "Hibbertia pungens" 115 "Flowers distinctly (sometimes shortly) pedicellate" "Hibbertia glabriuscula" 115 "Flowers sessile or subsessile" 116 116 "Sepals densely pubescent to villous with golden-brown hairs" "Hibbertia drummondii" 116 "Sepals glabrous to sparsely appressed-hairy with pale hairs" "Hibbertia glabriuscula" 117 "Flowers subtended by conspicuous, broad, brown, chartaceous bracts" 118 117 "Floral bracts inconspicuous, or if so then not broad, brown and chartaceous" 146 118 "Carpels glabrous" 119 118 "Carpels hairy" 132 119 "Flowers sessile or nearly so" 120 119 "Flowers distinctly pedicellate" 131 120 "Leaves densely appressed silvery- or grey-sericeous at least beneath" 121 120 "Leaves glabrous, pubescent or pilose beneath but not appressed silvery- or grey-sericeous" 124 121 "Leaves concolorous or nearly so, appressed-sericeous on both sides" 122 121 "Leaves distinctly discolorous, green and glabrous or velvety with erect hairs above, silvery to pale grey appressed-sericeous beneath" 123 122 "Carpels 3; stamens 30–48" "Hibbertia argentea" 122 "Carpels 2; stamens 21–27" "Hibbertia barrettiae" 123 "Leaves adaxially with short, erect, velvety hairs; sepals densely appressed-pilose" "Hibbertia wheelerae" 123 "Leaves adaxially glabrous; sepals glabrous except for very short, appressed hairs at the apex" "Hibbertia sandifordiae" 124 "Carpels (4)5" "Hibbertia lividula" 124 "Carpels (2)3" 125 125 "Stamens 16–40(–50), arranged in three groups with distinct gaps along the radius of the carpels" 126 125 "Stamens (40–)50–80, arranged more or less evenly all around the carpels" 130 126 "Leaves sparsely pilose with long, spreading, tubercle-based hairs (these sometimes restricted to the leaf margins)" "Hibbertia pilosa" 126 "Leaves glabrous to densely pubescent to shortly pilose, if pilose then the hairs usually +/- appressed and without distinct tubercles" 127 127 "Low, multistemmed shrubs to 50 cm; leaves mostly 15–40 mm long, dull, dark green above, often greyish beneath, entire or at most with one or two short, indistinct teeth on each side near the apex" 128 127 "Erect shrubs to 1.8 m, single-stemmed at the base; leaves usually 30–70 mm long at least on the main stems, pale green; larger leaves distinctly toothed" 129 128 "Sepals densely spreading-hirsute with white hairs including at the base; flower buds distinctly rostrate, the sepal apices attenuate" "Hibbertia commutata" 128 "Sepals glabrous at base, sparsely to moderately appressed-pubescent to -hirsute with silvery hairs towards the apex; flower buds not or only slightly rostrate, the sepal apices acute to shortly acuminate" "Hibbertia semipilosa" 129 "Leaves thin-textured, sparsely, finely and shortly appressed-pubescent above; sepals 6–8 mm long; stamens usually 20–30" "Hibbertia serrata" 129 "Leaves thick-textured, spreading-pubescent above; sepals 8–11 mm long; stamens usually 40–50" "Hibbertia improna" 130 "Sepals minutely appressed-pubescent; leaves pilose" "Hibbertia mylnei" 130 "Sepals shortly appressed-hairy; leaves glabrous to sparsely pilose" "Hibbertia ambita" 131 "Leaves usually 4–10 mm long, spreading-pilose; carpels (2)3; stamens 16–24" "Hibbertia inconspicua" 131 "Leaves usually 25–40 mm long, appressed-sericeous; carpels (3–)5; stamens 60–90" "Hibbertia potentilliflora" 132 "Flowers yellow" 133 132 "Flowers orange" 145 133 "Flowers distinctly pedicellate" 134 133 "Flowers sessile or shortly pedicellate (the pedicels shorter than the floral bracts and hidden by them at anthesis" 136 134 "Leaves petiolate, distinctly toothed; pedicel subtended by a single, triangular bract; carpels (5)10(15)" "Hibbertia grossulariifolia" 134 "Leaves sessile, entire or obscurely and distantly toothed; pedicels subtended by several orbicular to triangular bracts; carpels 5" 135 135 "Leaves mostly 20–30 mm wide, with hairs of two distinct lengths, the shorter hairs 0.1–0.2 mm long (best seen on young leaves)" "Hibbertia lasiopus" 135 "Leaves mostly 8–16 mm wide, when mature with even-length hairs 0.5 mm long (sometimes overtopped by very sparse, longer, pilose hairs when young)" "Hibbertia acrotoma" 136 "Carpels 2" "Hibbertia inopinata" 136 "Carpels 3–5" 137 137 "Sepals densely appressed- to spreading-pilose throughout, the hairs 1–3 mm long" 138 137 "Sepals velvety with very fine, short, appressed hairs <0.5 mm long at least in the upper half, with or without distinctly longer hairs in the basal half or along the margins" 143 138 "Erect to spreading shrubs, single-stemmed at base" 139 138 "Prostrate to decumbent shrubs, multi-stemmed at base" 141 139 "Leaves adaxially with fine, appressed hairs all the same length" "Hibbertia elegans" 139 "Leaves adaxially with hairs of variable length, or of two distinct lengths, not appressed" 140 140 "Leaves coarsely tomentose to pubescent with hairs of variable length; sepals 5–7 mm long, pilose almost throughout" "Hibbertia montana" 140 "Leaves with very short, erect hairs to 0.1 mm overtopped by sparse, spreading pilose hairs to 2 mm long; sepals 8–10mm long, often pilose in the lower half only" "Hibbertia davisii" 141 "Leaves with hairs of two distinct lengths (best seen on young leaves),with an underlayer of minute, erect, velvety hairs overlain by much longer, pilose hairs" "Hibbertia lasiopus" 141 "Leaves with hairs all more or less the same length, or the hairs of variable length" 142 142 "Indumentum obscuring the leaf surface at least when young; sepals 8–10 mm long; petals 12–14 mm long" "Hibbertia quadricolor" 142 "Indumentum not obscuring the leaf surface when young; sepals 10–18 mm long; petals 20–35 mm long" "Hibbertia spectabilis" 143 "Plants prostrate, mat-forming" "Hibbertia hortiorum" 143 "Plants erect to spreading" 144 144 "Carpels densely pubescent; sepals with a prominent marginal fringe of pilose hairs in the lower half" "Hibbertia ovata" 144 "Carpels mostly glabrous with very sparse hairs mainly along the suture on the inner margin; sepals with no or few marginal pilose hairs in the lower half" "Hibbertia ambita" 145 "Carpels 5; anthers yellow or black, obovate" "Hibbertia miniata" 145 "Carpels 3; anthers yellow, linear" "Hibbertia selkii" 146 "Carpels 1–3" 147 146 "Carpels (4)5, or 10–15" 154 147 "Carpels 2" "Hibbertia serrata" 147 "Carpels 3" 148 148 "Stamens >50" "Hibbertia glaberrima" 148 "Stamens <50" 149 149 "Leaves amplexicaul" "Hibbertia nymphaea" 149 "Leaves sessile or shortly petiolate, not amplexicaul" 150 150 "Sepals glabrous (except sometimes a ciliolate margin)" 151 150 "Sepals sparsely to densely tomentose to silky" 153 151 "Leaves usually dimorphic; floral leaves ovate to elliptic, usually somewhat undulate and very minutely crenulate; leaves basal to thee flowering shoots much longer and narrowly oblong" "Hibbertia glomerata subsp. glomerata" 151 "Leaves all similar, narrowly obovate or oblong to oblong-elliptic" 152 152 "Leaves narrowly obovate; sepals apiculate, the outer sepals shorter than the inner sepals" "Hibbertia glomerata subsp. wandoo" 152 "Leaves narrowly oblong; sepals obtuse, all approximately equal in length" "Hibbertia glomerata subsp. darlingensis" 153 "Stamens > 30" "Hibbertia serrata" 153 "Stamens < 30" "Hibbertia inconspicua" 154 "Carpels hairy" "Hibbertia grossulariifolia" 154 "Carpels glabrous" 155 155 "Leaves amplexicaul or perfoliate" 156 155 "Leaves not amplexicaul or perfoliate" 160 156 "Leaves broadly elliptic to circular" "Hibbertia porongurupensis" 156 "Leaves broadly ovate to linear" 157 157 "Leaves perfoliate, distinctively rough-textured, usually with marginal, multi-cellular denticulations; trailing plants of wet, swampy places" "Hibbertia perfoliata" 157 "Leaves perfoliate or not, smooth-textured, the margtins smooth or obscurely toothed; erect to spreading plants of dry sites" 158 158 "Young stems growing in a zig-zag pattern; leaves very narrowly ovate to linear" "Hibbertia cunninghamii" 158 "Young stems not zig-zag; leaves ovate to narrowly ovate" 159 159 "Staminal filaments closely appressed to and fully obscuring the carpels, the anthers arranged above the centre of the flower like a fountain; bract below the sepals usually more than half the sepal length, ovate to triangular, not or scarcely cordate at base; sepals ovate to triangular; leaves usually not distinctively perfoliate" "Hibbertia amplexicaulis" 159 "Staminal filaments erect to slightly spreading, not closely appressed to the carpels, which are generally visible between the filaments and from above, the anthers rather loosely arranged around the centre of the flower; bract below the sepals usually more less than half the sepal length, broadly ovate and cordate at base; sepals broadly ovate; leaves often distinctively perfoliate" "Hibbertia bupleurifolium" 160 "Flowers distinctly pedicellate" "Hibbertia potentilliflora" 160 "Flowers sessile or very shortly pedicellate" "Hibbertia lividula" 161 "Stamens all free" 162 161 "At least some stamens distinctly united by their filaments into bundles" 165 162 "Flowers stalked" 163 162 "Flowers sessile" 164 163 "Leaves flat or subterete, glabrous at the base" "Hibbertia stellaris" 163 "Leaves folded, when narrow appearing to be terete with an adaxial groove, appressed-hairy at the base with a ciliate margin" "Hibbertia leptopus" 164 "Stamens 8–12" "Hibbertia inclusa" 164 "Stamens 15–35" "Hibbertia crispula" 165 "Bracts conspicuous, broad, brown" 166 165 "Bracts inconspicuous or leaf-like" 169 166 "Sepals chartaceous and easily torn, very broadly elliptic; stamens 2.5–4 mm long, anthers oblong to elliptic" 167 166 "Sepals herbaceous, elliptic to narrowly elliptic; stamens 1.5–2.5 mm long, anthers oblong to obovate" 168 167 "Leaves terete to semi-terete, apices with a few minute hairs" "Hibbertia acrotrichion" 167 "Leaves flat, completely glabrous" "Hibbertia chartacea" 168 "Bracts circular to depressed ovate, 2–3 mm wide" "Hibbertia pulchra var. pulchra" 168 "Bracts ovate to elliptic, 1–1.3 mm wide" "Hibbertia pulchra var. acutibractea" 169 "Outermost sepals with a prominent caudate tip" 170 169 "Outermost sepals acute or obtuse, but not with a caudate tip" 173 170 "Leaves terete, thick with somewhat recurved margins or flat, but not with margins revolute to midrib" 171 170 "Leaves flattened, margins appearing revolute and distinctly 2-grooved below" 172 171 "Flowers sessile or subsessile" "Hibbertia hibbertioides var. hibbertioides" 171 "Flowers distinctly pedicellate" "Hibbertia hibbertioides var. pedunculata" 172 "Leaves straight to shallowly curved, not distinctly dilated and flatted at the apex" "Hibbertia rupicola" 172 "Leaves deeply curved to sinuate, distinctly dilated and flattened at the apex" "Hibbertia hamata" 173 "Leaves flat or flattened, not terete; stamens 1.5–2.5 mm long; anthers 0.8–1.5 mm long, oblong to obovate, apex obtuse or truncate" "Hibbertia pulchra var. crassinervia" 173 "Leaves slender, more or less terete, usually tapered towards tip; stamens 2.5–3.5(–4) mm long; anthers oblong to elliptic, apex subacute or apiculate" 174 174 "Leaves 3–12 mm long; staminal filaments of fascicles, fused for two-thirds their length" "Hibbertia hemignosta" 174 "Leaves 10–22 mm long; staminal filaments fused for up to half their length" "Hibbertia hibbertioides var. merdionalis" 175 "Petals yellow" "Hibbertia conspicua" 175 "Petals white, pink or red" 176 176 "Petals red, persistent or if deciduous then corona present" "Hibbertia sphenandra" 176 "Petals white to pink, deciduous; corona absent" 177 177 "Stamens with the filament papillate and the thecae 0.3–0.5 mm long" "Hibbertia persquamata" 177 "Stamens with the filaments smooth to sub-papillate and the thecae (0.8–)1–2.5 mm long" "Hibbertia paranthera"