Leaves erect to reflexed, aristate or with a callous tip, usually concolorous; lamina glabrous or pubescent, lower surface striate, margins entire or ciliate to finely toothed; sessile or shortly petiolate.
Flowers in solitary or clustered spikes, each flower subtended by a single bract and 2 bracteoles; peduncles usually pubescent; bracts and bracteoles ovate to circular, glabrous except for ciliolate margins. Sepals similar to bracts. Corolla tube often shorter than lobes, glabrous, or minutely pubescent inside near the throat or with lobe hairs deflexed into tube; lobes valvate in bud, erect to spreading, rarely reflexed in the open flower, white-bearded inside. Stamens inserted at the throat; filaments slender, terete; anthers usually partly enclosed in the tube, with or without a paler sterile tip. Ovary usually 2–5-locular, with 1 ovule per loculus; style usually glabrous, stigma lobed; nectary annular or in 5 scales.
| | Key to the species | |
| 1 | Style of flowers shorter or more or less equal to ovary height, never exserted from corolla tube but sometimes obvious at throat; flowers terminal or axillary | 2 |
| Style of flowers usually much longer than ovary and exserted from corolla tube, rarely more or less equal to ovary and then obvious in throat; flowers always in axillary spikes | 19 |
| 2 | Flowers in terminal and upper axillary spikes; anthers usually with sterile tip, rarely emarginate | 3 |
| Flowers axillary; anthers always without sterile tips
Back to 1 | 16 |
| 3 | Plants diffuse, mat-forming or straggling | 4 |
| Plants erect, slender or robust
Back to 2 | 5 |
| 4 | Leaves broad-ovate, more than 4 mm wide, base auriculate-saggitate | Leucopogon amplexicaulis |
| Leaves usually oblong or elliptic, less than 1.5 mm wide, base tapering
Back to 3 | Leucopogon pilifer |
| 5 | Flowering spikes pendent | 6 |
| Flowering spikes erect
Back to 3 | 7 |
| 6 | Leaves less than 2 mm wide; flowers 6–15 per spike; sepals obtuse; corolla tube shorter than the sepals, less than 1 mm long | Leucopogon rodwayi |
| Leaves more than 2 mm wide, flowers 3–8 per spike; sepals acute; corolla tube longer than sepals, more than 2 mm long
Back to 5 | Leucopogon gelidus |
| 7 | Spikes usually less than 12 mm long, clustered at end of branches, less than 10 flowers per spike | 8 |
| Spikes usually more than 12 mm long, not clustered, more than 10 flowers per spike
Back to 5 | 14 |
| 8 | Leaves distinctly petiolate | 9 |
| Leaves tapering at base, with indistinct petiolar area
Back to 7 | 11 |
| 9 | Shrubs more than 1 m high; leaves horizontal; flowers bisexual; corolla tube longer than the sepals | Leucopogon maccraei |
| Shrubs usually less than 0.6 m high; leaves mainly erect or more or less erect; flowers mainly unisexual; corolla tube shorter than or equal to the sepals
Back to 8 | 10 |
| 10 | Leaves with margins often recurved; sepals 1.8–2.6 mm long; corolla tube equal to the sepals, pilose inside upper half; lobes shorter than the tube, pilose to pubescent | Leucopogon hookeri |
| Leaves with margins usually flat; sepals 1.5–1.9 mm long; corolla tube shorter than the sepals, glabrous; lobes usually longer than or equal to the tube, glabrous
Back to 9 | Leucopogon montanus |
| 11 | Leaves concave | Leucopogon virgatus |
| Leaves convex or flat
Back to 8 | 12 |
| 12 | Leaves less than 8 mm long, callous tipped; bracteoles and sepals more or less acuminate; corolla tube shorter than the sepals | Leucopogon microphyllus |
| Leaves more than 8 mm long, finely mucronate; bracteoles and sepals broad-acute or obtuse; corolla tube longer than or equal to the sepals
Back to 11 | 13 |
| 13 | Leaves flat, concolorous; flowers with bracteoles less than 1.5 mm long, sepals less than 2.5 mm long; fruit obovoid, c. 3 mm diam | Leucopogon melaleucoides |
| Leaves convex, discolorous; flowers with bracteoles more than 1.5 mm long, sepals more than 2.5 mm long; fruit depressed-globose, 4–5.5 mm diam
Back to 12 | Leucopogon species B |
| 14 | Slender shrubs, usually less than 1 m high; leaves usually convex, variable in shape ovate to oblong to elliptic, to 13 mm long, 2.5 mm wide | Leucopogon collinus |
| Small trees or robust shrubs more than 1 m high; leaves more or less flat, elliptic, ovate or obovate, often more than 13 mm long, more than 2.5 mm wide
Back to 7 | 15 |
| 15 | Leaves usually obovate, 11–29 mm long, 2.5–7.5 mm wide; flowers crowded in dense clusters of spikes; ovary 4- or 5-locular; fruit white, 4.3–5 mm long | Leucopogon parviflorus |
| Leaves usually elliptic or narrow-ovate, 1.3–5.5 mm wide; flowers evenly spaced in open spikes; ovary 2- or 3-locular; fruit red, 2.1–3.3 mm long
Back to 14 | Leucopogon lanceolatus |
| 16 | Leaves mostly convex, finely scabrous to bristly | 17 |
| Leaves more or less flat or concave, glabrous
Back to 2 | 18 |
| 17 | Inflorescences with 1–3 flowers plus rudiment; flowers small, bracteoles less than 1.5 mm long, sepals less than 2.5 mm long, acute, outer surface sparsely bristly | Leucopogon attenuatus |
| Inflorescences with solitary flowers plus rudiment; flowers larger, bracteoles more than 2 mm long, sepals more than 3 mm long, acuminate, outer surface villous
Back to 16 | Leucopogon confertus |
| 18 | Leaves always erect and often upwardly appressed near end of branches, 4–9.5 mm long, concave and somewhat twisted when dry; flowers inconspicuous; sepals 1.5–2 mm long; corolla tube equal to or just longer than the sepals | Leucopogon appressus |
| Leaves often suberect, not appressed, 8.5–12 mm long, more or less flat, not twisted when dry; flowers conspicuous; sepals 2.3–3 mm long; corolla tube much shorter than the sepals
Back to 16 | Leucopogon leptospermoides |
| 19 | Leaves with pungent tip more than 0.5 mm long | 20 |
| Leaves with callus tip or short mucro less than 0.5 mm long
Back to 1 | 29 |
| 20 | Leaves usually convex, the margin recurved to revolute | 21 |
| Leaves flat or concave, margins not recurved
Back to 19 | 26 |
| 21 | Corolla tube well exceeding sepals | 22 |
| Corolla tube equal or shorter than sepals
Back to 20 | 23 |
| 22 | Flowers pendent; corolla tube 2.6–4.8 mm long | Leucopogon fletcheri |
| Flowers erect; corolla tube 5.5–8 mm long
Back to 21 | Leucopogon juniperinus |
| 23 | Flowers spreading to pendent on recurved peduncles more than 2.5 mm long | 24 |
| Flowers erect or spreading, sessile or on peduncles less than 2 mm long
Back to 21 | 25 |
| 24 | Bracts, bracteoles and sepals sparsely bristly; sepals more than 4 mm long; corolla tube c. 3.5 mm long, lobes 4–5 mm long, villous outside | Leucopogon exolasius |
| Bracts, bracteoles and sepals glabrous; sepals less than 4 mm long; corolla 2–3 mm long, lobes 2.5–4 mm long, glabrous outside
Back to 23 | Leucopogon setiger |
| 25 | Leaves usually spreading; flowers 3–8, rarely 11 per spike | Leucopogon ericoides |
| Leaves erect, often upwardly appressed to stem; flowers 1–3 per spike
Back to 23 | Leucopogon recurvisepalus |
| 26 | Leaves flat, elliptic or oblong | 27 |
| Leaves slightly concave, often obovate
Back to 20 | 28 |
| 27 | Leaves erect or more or less erect, elliptic; flowers inconspicuous, hidden amongst leaves; corolla tube less than 1.5 mm long | Leucopogon esquamatus |
| Leaves usually horizontally spreading, oblong; flowers conspicuous, often pendent; corolla tube more than 2.5 mm long
Back to 26 | Leucopogon biflorus |
| 28 | Erect to spreading shrub; leaves broad-ovate to obovate; corolla tube 5–8 mm long; fruit enclosed in sepals | Leucopogon neoanglicus |
| Low, often prostrate shrub, leaves narrow-oblong to obovate; corolla tube 3.3–5 mm long; fruit well exceeding sepals
Back to 26 | Leucopogon fraseri |
| 29 | Leaves lanceolate | Leucopogon deformis |
| Leaves obovate
Back to 19 | 30 |
| 30 | Leaves 12–21 mm long, 3–4 mm wide; flowers 4–10 per spike; corolla tube longer than the sepals | Leucopogon muticus |
| Leaves 6–11 mm long, 1–2.5 mm wide; flowers 1 or 2 per spike; corolla tube shorter than the sepals
Back to 29 | Leucopogon margarodes |
