1	"Leaf bases amplexicaul (E of Ludlow to Hithergreen)"	"Grevillea maccutcheonii"
1	"Leaf bases linear to cuneate"	2
2	"Leaves divaricately divided, the principal leaf rachis angularly refracted at first and/or terminal node"	3
2	"Leaves flat or secund, the principal leaf rachis straight or smoothly recurved"	4
3	"Pistils 29–35 mm long; leaf rachis refracted at first node; outer surface of perianth glossy in vivo; leaf lobes 1.5–5 mm wide, linear to elliptic, the under-surface exposed, glabrous; simple leaves sometimes present; intramarginal veins evident on leaf upper surface (Collie to Bridgetown)"	"Grevillea ripicola"
3	"Pistils 20–22 mm long; leaf rachis angularly refracted at all nodes; outer surface of perianth dull in vivo; leaf lobes 0.8–1.1 mm wide, linear, the under-surface enclosed by margins when dry, sericeous in the grooves beside the midvein; simple leaves never present; intramarginal veins not evident on leaf upper surface (near Lake Unicup)"	"Grevillea acropogon"
4	"All or some leaves divided"	5
4	"All leaves simple and entire"	20
5	"Leaves coarsely divided, obovate or obtrullate to subcruciform; leaf base cuneate; venation conspicuously raised on the leaf upper surface"	6
5	"Leaves deeply divided, usually with sub-sect division; leaf base linear to very narrowly cuneate; venation obscure to evident on the leaf upper surface"	7
6	"Leaves 1.7–4.3 cm long, pliable, silvery, obovate, the apex obtuse, apically dentate or shallow-lobed in the distal half; leaf lobes linear to narrow-triangular; petioles 3–6 mm long; conflorescences usually branched (Cape Range)"	"Grevillea variifolia"
6	"Leaves 1.0–1.5 cm long, rigid, grey, subcruciform, the apex acute, pungent, the lobes broad-triangular; petioles c. 2 mm long; conflorescences mostly simple (inland from Ningaloo)"	"Grevillea bundera"
7	"Conflorescence development acropetal (floral buds enlarging first from base of the rachis towards the apex)"	8
7	"Conflorescence development basipetal (floral buds enlarging or opening first at the apex of the rachis) to synchronous"	12
8	"Inflorescence rachises glabrous (rarely with scattered isolated hairs); perianth limb and pedicels glabrous (coastal and subcoastal; Leeman to Cervantes)"	"Grevillea glabrilimba"
8	"Inflorescence rachises densely hairy; perianth limb and/or pedicels hairy or glabrous"	9
9	"Distance from basal leaf lobe to branch 1–4 mm; branchlets densely hairy"	10
9	"Distance from basal leaf lobe to branch > 5 mm; branchlets glabrous to sericeous-tomentose"	11
10	"Simple inflorescence rachises mostly 20–50 mm long; habit of plant prostrate with elongate branches to 3 m long; branchlets densely tomentose, lacking conspicuous long hairs to 2 mm long interspersed; leaves grey; perianth glabrous with scattered appressed hairs confined to the limb (SE of Jurien Bay)"	"Grevillea humifusa"
10	"Simple inflorescence rachises mostly 8–15 mm long; habit of plant shrubby with ascending branches < 1 m long; branchlets densely tomentose with conspicuous long hairs interspersed; leaves green; perianth glabrous or sometimes variably and sparsely hairy (Mt Lesueur area)"	"Grevillea delta"
11	"Branchlets with a dense indumentum; leaves 2.5–5.2 cm long, divided, very rarely an occasional leaf simple; perianth outside (including below the limb), and pedicels, with few to many appressed hairs; inflorescence rachises densely tomentose (coastal and subcoastal; Lancelin–Yalgorup)"	"Grevillea preissii"
11	"Branchlets glabrous or sparsely hairy; leaves 0.8–3.2 cm long, simple and divided; perianth outside and pedicels glabrous, (appressed hairs confined to the perianth limb); inflorescence rachises sparsely sericeous (Cooljarloo area)"	"Grevillea cooljarloo"
12	"All or some leaves with secondary and/or tertiary partite (-sect) division; leaf apices acute or obtuse"	13
12	"All leaves either once-divided or once-divided leaves and simple leaves intermixed"	14
13	"Conflorescence subglobose-secund, lax; styles drooping; pistils 24–28 mm long; pollen-presenter 1.4–1.8 mm long; branchlets glabrous; widest leaves > 2 cm wide; leaf lobes 0.3–0.5 mm wide, filamentous, curved, terete, pliable; perianth 3–4 mm wide, often glaucous (Greenough River to Ellendale Pool)"	"Grevillea fililoba"
13	"Conflorescence subcylindrical-secund, tight; styles spreading; pistils 20–22 mm long; pollen-presenter c.1.2 mm long; branchlets pilose; widest leaves ≤1.5 cm wide; leaf lobes 0.6–0.8 mm wide, not filamentous, straight, linear, stiff; perianth 2.2–2.5 mm wide, non-glaucous (Gillingarra area)"	"Grevillea gillingarra"
14	"Inflorescence rachises 35–60 mm long; leaf margins angular; all leaves silvery-grey, pinnately divided; leaf lobes 4–12.5 cm long; pedicels and perianth outside densely to sparsely hairy (Kalbarri to Tamala)"	"Grevillea stenomera"
14	"Inflorescence rachises < 25 mm long; leaf margins smoothly revolute or recurved; all leaves green or bluish-green, either simple or if divided then intermixed with simple leaves); leaf lobes of divided leaves < 4 cm long; pedicels and perianth glabrous (the limb sometimes with appressed hairs)"	15
15	"Branchlets pubescent, tomentose or villous (hairs spreading)"	16
15	"Branchlets glabrous, subsericeous or sericeous (hairs appressed)"	18
16	"Upper surface of leaves punctate or with spreading hairs; lower surface and sometimes also the midvein enclosed by strongly and often unevenly revolute margins; perianth limb flanged at the segment interfaces (between Mingenew to Walkaway)"	"Grevillea hirtella"
16	"Upper surface of leaves smooth, glabrous; lower surface narrowly exposed beside midvein or enclosed and bisulcate, the midvein never obscured by margins; perianth limb smooth, without flanges at the segment interfaces"	17
17	"Simple leaves (2.5–)4–8 cm long; lower surface either enclosed by revolute margins or narrowly exposed; leaf margins smoothly and evenly revolute; leaf lobes of divided leaves when present 0.5–2(–2.8) mm wide (Murchison River to Eneabba with disjunct occurrences at Hamelin Pool, Wongan Hills, Pithara)"	"Grevillea pinaster"
17	"Simple leaves 1.3–3 (–3.5) cm long; lower surface exposed; leaf margins smoothly but loosely revolute; leaf lobes of divided leaves when present 1.2–5.5 mm wide (Eneabba, Arrowsmith to Arrino)"	"Grevillea exposita"
18	"Simple leaves 2–4 mm wide, predominant (Pinjarra, Muchea to Gingin)"	"Grevillea obtusifolia"
18	"Simple leaves absent or if present, then < 2 mm wide"	19
19	"Most leaves 2.5–8 cm long; lower surface of simple leaves enclosed by tightly and evenly revolute margins, rarely slightly exposed on leaves > 4 cm long; plants seed-obligate or lignotuberous (Murchison River to Eneabba with disjunct occurrences at Hamelin Pool, Wongan Hills, Pithara)"	"Grevillea pinaster"
19	"Most leaves 1–2(–2.5) cm long; lower surface of some leaves narrowly exposed beside midvein; leaf lobes of divided leaves 0.5–1.7 cm long; plants lignotuberous (Kenwick area of Perth)"	"Grevillea thelemanniana"
20	"Leaf lower surface broadly exposed; leaf margins shortly recurved"	21
20	"Leaf lower surface either fully enclosed by leaf margins or partly visible in narrow grooves beside the midvein; leaf margins revolute, abutting the midvein on the under-surface or almost so"	24
21	"Outer surface of perianth hairy; simple inflorescences regular, dome-shaped (coastal from Jurien Bay to Coolimba)"	"Grevillea olivacea"
21	"Outer surface of perianth glabrous or almost so; simple inflorescences secund"	22
22	"Lower surface of mature leaves glabrous, rarely a few hairs scattered; plants tree-like 3–5 m high, seed-obligate, their height > than their width; leaves 2.5–9 mm wide (Yanchep to Neeragabby)"	"Grevillea evanescens"
22	"Lower surface of mature leaves densely sericeous; plants prostrate to 3.5 m high, lignotuberous, their width greater than their height; leaves 2–4 mm wide"	23
23	"Branchlets sericeous to glabrous (Pinjarra, Muchea to Gingin)"	"Grevillea obtusifolia"
23	"Branchlets pubescent-tomentose (Eneabba–Arrowsmith River to Arrino)"	"Grevillea exposita"
24	"Most leaves 2.5–8 cm long; lower surface of simple leaves enclosed by tightly and evenly revolute margins, rarely slightly exposed on leaves > 4 cm long; plants seed-obligate or lignotuberous (Murchison River to Eneabba with disjunct occurrences at Hamelin Pool, Wongan Hills, Pithara)"	"Grevillea pinaster"
24	"Most leaves 1–2(–2.5) cm long; lower surface of some leaves narrowly exposed beside midvein; leaf lobes of divided leaves 0.5–1.7 cm long; plants lignotuberous (Kenwick area of Perth)"	"Grevillea thelemanniana"