1 "Leaves opposite or whorled or pseudo-whorled" 2 1 "Leaves alternate" 8 2 "Fruit falling at maturity, either indehiscent or a tardily dehiscent, leathery, globose follicle" 3 2 "Fruit persistent on plant for several to many years, follicular, woody or cartilaginous" 7 3 "Flowers borne in regular, sessile, or shortly pedunculate pairs on an inflorescence axis; style tip swollen, functioning as a pollen presenter" 4 3 "Flowers borne singly in the axils of scale leaves or leaves in racemose or capitulate inflorescences; style tip not swollen, not functioning as a pollen presenter" 6 4 "Perianth strongly zygomorphic; hypogynous glands free, 4 or 2; pericarp fleshy, red to purple to blue" Triunia 4 "Perianth actinomorphic; hypogynous glands connate, forming a ring around ovary; perianth leathery, green to brown or greyish" 5 5 "Adult leaves in whorls of 3 or 4 (–5); if 4 (–5), lamina margin always spinose; if 3, lamina margins spinose or entire; conflorescence simple" Macadamia 5 "Adult leaves in whorls of 4 or more; lamina margins entire; conflorescence branched" Lasjia 6 "Hypogynous glands absent; staminal filaments free or slightly adnate to the base of tepals; fruit more than 2 cm diam.; pericarp parenchymatous; rainforest trees" Eidothea 6 "Hypogynous glands present; staminal filaments largely or wholly adnate to tepals; fruit less than 2 cm diam.; pericarp succulent; shrubs and small trees, mostly of sclerophyllous communities" Persoonia 7 "Inflorescence raceme-like, with a non-woody axis; follicle symmetrical, ellipsoidal to pear-shaped" Xylomelum 7 "Inflorescence cone-like, with a woody axis; follicle asymmetrical, laterally compressed" Banksia 8 "Leaves palmately compound with 5, or occasionally 3 radiating segments; some or all of the segments themselves often pinnately compound" Carnarvonia 8 "Leaves simple or pinnately or bipinnately or (pseudo-)dichotomously compound" 9 9 "Perianth zygomorphic" 10 9 "Perianth actinomorphic" 27 10 "Flowers sessile in dense, cone-like, globose to cylindrical inflorescences; inflorescence axis woody" Banksia 10 "Flowers pedicellate to sessile, but not in cone-like inflorescences; inflorescence axis not woody" 11 11 "Flowers borne singly along the inflorescence axis, or inflorescence umbellate or reduced to a single flower" 12 11 "Flowers borne in regular, sessile or pedunculate pairs along inflorescence axis" 18 12 "One anther and two half-anthers abortive; loculi of adjacent anthers coherent in bud; each half-anther apparently 1-locular; hypogynous glands absent" Conospermum 12 "Anthers not as above, either all developed and fully 4-locular or 1 or 3 infertile; hypogynous glands usually present" 13 13 "Upper stamen fertile, the other 3 reduced to staminodes; plant andromonoecious, most flowers lacking a gynoecium; fruit a follicle in which the winged seeds are oriented transversely" Placospermum 13 "All stamens fertile, or rarely 1 or all stamens infertile; flowers usually bisexual; fruit either not follicular or follicular but with longitudinally oriented seeds" 14 14 "Gynoecium about half length of perianth, hooked so that tip sits in pouch of ventral tepal below ventral anther; fruit a drupe" Persoonia 14 "Gynoecium about as long as perianth, exserted; fruit an achene or follicle" 15 15 "Inflorescence umbel-like or reduced to a single flower; axis of symmetry of gynoecium passing through anterior and posterior tepals; hairs simple, seed enclosed within a membranous envelope" 16 15 "Inflorescence raceme-like and multi-flowered or rarely umbel-like or reduced to a single flower; axis of symmetry of gynoecium passing between tepals; hairs mostly bifid, seed not enclosed within a membranous envelope" 17 16 "Ovules 2; follicle woody, 1-seeded" Strangea 16 "Ovules more than 2; follicle leathery or cartilaginous, multi-seeded" Stenocarpus 17 "Fruit usually leathery, rarely woody, lacking secondary thickening, usually not persisting on the plant for more than a year; leaves usually flat or angular in cross-section, usually with dissimilar surfaces, rarely truly terete or unifacial" Grevillea 17 "Fruit with woody secondary thickening, persistent on the plant for several to many years; leaves terete or flat with similar surfaces" Hakea 18 "Hypogynous glands 2, 3 or 4, free" 19 18 "Hypogynous gland solitary, mostly crescentic or annular or occasionally bifid" 22 19 "Ovary densely hairy; ovules 2" 20 19 "Ovary glabrous; ovules more than 2" 21 20 "Leaves with entire to dentate margins; pollen presenter" Triunia 20 "Leaves pinnatisect; pollen presenter appearing to be lateral on style tip, not radially symmetrical; hypogynous glands opposite tepals; fruit a follicle" Grevillea 21 "Hypogynous glands 3; axis of symmetry of gynoecium passing between tepals; follicle leathery; seed wing terminal, diaphanous" Lomatia 21 "Hypogynous glands 4; axis of symmetry of gynoecium passing through tepals; follicle woody; seed wing surrounding embryo, opaque" Cardwellia 22 "Ovules 2; fruit 1" 23 22 "Ovules more than 2; fruit multi-seeded" 25 23 "Pedicels absent, each flower pair borne on a common peduncle; axis of symmetry of gynoecium passing through tepals; hairs simple; fruit indehiscent; seed not winged" Bleasdalea 23 "Pedicels present; common peduncle of flower pair absent; axis of symmetry of gynoecium passing between tepals; hairs mostly bifid; fruit dehiscent either spontaneously or on drying; seed usually winged" 24 24 "Fruit usually leathery, rarely woody, lacking secondary thickening, usually not persisting on plant for more than a year; leaves usually flat or angular in cross-section, usually with dissimilar surfaces, rarely truly terete or unifacial" Grevillea 24 "Fruit with woody secondary thickening, persistent on plant for several to many years; leaves terete or flat with similar surfaces" Hakea 25 "Axis of symmetry of gynoecium passing between tepals; flowers bilaterally symmetrical, red (very rare individuals can have white or yellow flowers)" Alloxylon 25 "Axis of symmetry of gynoecium passing through tepals, or flowers asymmetrical; flowers white to cream, sometimes appearing brownish due to hairs on outside of tepals" 26 26 "Lower surface of leaves densely covered in persistent, appressed, shining hairs; intermediate leaves pinnate; perianth c. 3 mm long; hypogynous gland bifid" Opisthiolepis 26 "Lower surface of leaves glabrous; intermediate leaves pinnatisect; perianth 7-20 mm long; hypogynous gland crenulate" Buckinghamia 27 "Style tip not differentiated from the rest of the style as a pollen presenter, not swollen" 28 27 "Style tip differentiated from the rest of the style as a pollen presenter, usually swollen" 32 28 "Hypogynous glands 4" 29 28 "Hypogynous glands absent" 31 29 "Inflorescence racemose, the flowers borne singly in the axils of scale leaves or leaves, frequently growing on into a leafy shoot; fruit a drupe; tepals most frequently yellow, less commonly white, green or marked with red" Persoonia 29 "Inflorescence a pseudo-raceme but the flowers borne on the inflorescence axis in lateral pairs subtended by prominent, often striped scale leaves, not growing on into a leafy shoot; fruit a follicle; tepals white to cream" 30 30 "Ovules 2; intermediate leaves simple, entire to dentate or pinnatisect" Orites 30 "Ovules 6" Neorites 31 "Fruit a follicle; intermediate leaves pinnate; some flowers lacking a gynoecium; rainforest trees" Sphalmium 31 "Fruit indehiscent; leaves simple, entire to pinnatisect; flowers bisexual; small trees or shrubs, usually in sclerophyllous communities" Conospermum 32 "Flowers borne singly in the axils of fleshy bracts in a dense cone-like inflorescence; fruit a nut; ovule solitary" 33 32 "Flowers borne in lateral pairs on the inflorescence axis; inflorescence raceme-like or dense and cone-like; fruit dehiscent or indehiscent but then usually with a succulent, outer mesocarp, rarely indehiscent and dry; ovules more than one" 34 33 "Cone scales falling with the fruits; nut not strongly compressed" Isopogon 33 "Cone scales adhering firmly to the inflorescence axis and opening to release the flattened nuts" Petrophile 34 "Flowers sessile, densely packed in heads or cone-like, globose or cylindrical inflorescences" Banksia 34 "Flowers either pedicellate or sessile (but then not densely packed in heads or cone-like inflorescences)" 35 35 "Hypogynous glands fused to form a single, annular or horse shoe-shaped nectary; ovary usually stipitata" 36 35 "Hypogynous glands distinct, free or basally fused to form a 4-lobed ring; ovary sessile" 38 36 "Inflorescence a 2-8 flowered umbel, or reduced to a single flower; axis of symmetry of gynoecium passing through anterior and posterior tepals; hairs simple; seeds enclosed within a membranous envelope" Strangea 36 "Inflorescence raceme-like and multi-flowered or rarely umbel-like or reduced to a single flower; axis of symmetry of gynoecium passing between tepals; hairs mostly bifid, seed not enclosed within a membranous envelope" 37 37 "Fruit usually leathery, rarely woody, lacking secondary thickening, usually not persisting on the plant for more than a year; leaves usually flat or angular in cross-section, usually with dissimilar surfaces, rarely truly terete or unifacial" Grevillea 37 "Fruit with woody secondary thickening, persistent on plant for several to many years; leaves terete or flat with similar surfaces" Hakea 38 "Hypogynous glands 3; pollen grains 2-porate, curved-ellipsoidal" 39 38 "Hypogynous glands 4; pollen grains 3-porate, 3-angled" 40 39 "Mature, hardened leaves glabrous; inflorescence 30-90 cm long, pendulous; perianth c. 20 mm long; intermediate leaves pinnate" Austromuellera 39 "Mature, hardened leaves densely and finely tomentose underneath; inflorescence to 20 cm long, ascending to erect; perianth c. 5 mm long; intermediate leaves simple although sometimes deeply lobed" Musgravea 40 "Adult leaves pinnate, often with a winged rachis" Hicksbeachia 40 "Adult leaves simple, entire to pinnatifid" 41 41 "Ovules more than 2; seeds 2 or more" 42 41 "Ovules 2; seeds 1 or 2" 43 42 "Inflorescence spreading to erect; tepals cream; ovules 4; seeds winged" Darlingia 42 "Inflorescence pendulous; tepals pink to mauve or red; ovules more than 4; seeds not winged" Hollandaea 43 "Pollen presenter c. twice as thick as the more proximal part of the style; fruit indehiscent; seed solitary, not winged" 44 43 "Pollen presenter only slightly thicker than the more proximal part of the style; fruit a follicle; seeds 2, winged" 47 44 "Leaves entire throughout life cycle; fruit brown or red when mature" 45 44 "Leaves with toothed margins present in juvenile phase and usually also in adults; sometimes adult leaves entire; fruit pinkish blue to deep blue to purple or black" 46 45 "Plant completely glabrous; tepals pink to red; fruit red; outer pericarp succulent; inner pericarp bony" Catalepidia 45 "Young stems and outer surface of tepals hairy; tepals cream; fruit brown; pericarp bony" Floydia 46 "Ovules orthotropous; intermediate leaves deeply pinnatifid; tepals 19-23 mm long; inflorescence 15-34 cm long; fruits lenticular, 3.6-4.1 cm long" Athertonia 46 "Ovules anatropous; intermediate leaves not lobed; tepals 6-18 mm long; inflorescence 4-17 cm long; fruit ovoid to globose, 0.6-1.4 cm long" Helicia 47 "Inflorescence ramiflorous, borne on the branches below the leaves; tepals 22-29 mm long; intermediate and some adult leaves with amplexicaul bases" Megahertzia 47 "Inflorescence axillary or terminal; tepals 4-8.5 mm long; leaf bases tapered" 48 48 "Flowers glabrous; fruits thin walled" Orites 48 "Flowers villous; fruits thick-walled" Nothorites