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Genus Eucalyptus Family Myrtaceae

Description: Trees, mallees or shrubs, often forming an underground lignotuber in many species; bark persistent (`rough barks'), or partly or wholly regularly shedding (`smooth barks').

Leaves dimorphic; juvenile leaves opposite; adult leaves usually disjunct opposite (appearing alternate); similifacial or less commonly dorsiventral, oil glands usually present in leaves.

Inflorescences usually based on condensed dichasia, forming umbellasters, mostly solitary and axillary but sometimes aggregated into compound terminal, pseudo-terminal or axillary structures; individual umbellasters usually 7-flowered, but ranging from 1 to >30 flowers in some species. Calyx and/or corolla fused into a calyptra which persists to anthesis. Stamens numerous, usually in several continuous whorls; anthers versatile or adnate, dehiscing by separate or confluent slits or pores. Ovary half-inferior, 2–7-locular, enclosed by hypanthium except at top; ovules numerous, ovulodes present.

Fruit a capsule, becoming woody in most species.


Distribution and occurrence: World: >800 species, all but 16 spp. endemic to Aust. (10 spp. native, 9 spp. N.G., Indon., Philipp.), all States (c. 240 spp. in N.S.W.). Refs Brooker (2000), Chippendale (1988), Hill (1997a & b, 1999), Hill & Johnson (1991, 1995), Hunter (1998b), Hunter & Bruhl (1999), Johnson & Hill (1990, 1999).

Species of Eucalyptus dominate most plant communities in all but the wettest, coldest and driest parts of the continent.

Many species are economically of great importance within Australia as timber, nectar resources for honey production, and for shelter in agricultural and pastoral regions. Species are extensively planted world-wide for timber, fuel, essential oils and pharmaceuticals. The eucalypts show a wide diversity, yet individual species are frequently finely defined and difficult to differentiate. Active taxonomic and morphological study in the group is proceeding, and many species remain to be defined. Generic and infrageneric relationships and limits are also under review. A summary and bibliography are presented by Chippendale (1988). A recent classification by Brooker (2000), formalises many of the names of Pryor and Johnson (1971) for infrageneric taxa that had not been formally published. However, species in this treatment are arranged in natural groupings in the text, following Pryor and Johnson (1971) and subsequent modifications of that system, not that of Brooker (2000).

Text by K.D. Hill
Taxon concept:

Bud and fruit development in Eucalyptus. A, bud with outer calyptra shed before inner calyptra; B, longitudinal section of bud 'A' after outer calyptra has been shed; C, fruit formed from bud 'B' showing calyptra and staminal ring scars, raised disc and exserted valves; D, longitudinal section of bud with calyptra shed as a single unit; E, fruit formed from bud 'D' showing calyptra and staminal ring scars, depressed disc and enclosed valves.

Taxa not yet included in identification key
Eucalyptus castrensis,    Eucalyptus cephalocarpa,    Eucalyptus expressa,    Eucalyptus forresterae,    Eucalyptus scoparia,    Eucalyptus sp. Cattai (Gregson s.n. 28 Aug 1954),    Eucalyptus sp. Howes Swamp Creek (M.Doherty 26)

 Key to the species 
1Bark rough, persistent over entire trunk2
Bark smooth on trunk172
Bark not ironbark
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3Stamens with filaments regularly inflexed, anthers cuboid4
Stamens with filaments irregularly flexed, anthers globose
                       Back to 2
4Adult leaves strongly discolorous5
Adult leaves concolorous or weakly discolorous
                       Back to 3
5Fruit 4-angledEucalyptus fergusonii
Fruit not angled
                       Back to 4
Eucalyptus paniculata
6Calyptra scar present7
No calyptra scar present
                       Back to 4
7Adult leaves glossy8
Adult leaves dull
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8Longest petioles <20 mm long, largest adult leaves <15 cm longEucalyptus placita
Longest petioles >20 mm long, largest adult leaves >15 cm long
                       Back to 7
Eucalyptus ancophila
9Adult leaves <1.2 cm wideEucalyptus beyeriana
Adult leaves >1.2 cm wide
                       Back to 7
10Adult leaves green or grey-green11
Adult leaves glaucous
                       Back to 9
11Fruit 4-angledEucalyptus tetrapleura
Fruit not angled
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12Juvenile leaves glossy greenEucalyptus ancophila
Juvenile leaves dull, grey-green
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13Juvenile leaves lanceolate, 15–20 cm longEucalyptus fusiformis
Juvenile leaves narrow-elliptic to elliptic, 3.5–9 cm long
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Eucalyptus scopulorum
14Fruit longer than broad; adult leaves acute15
Fruit shorter than broad; adult leaves rounded
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Eucalyptus panda
15Adult leaves broad-lanceolate to ovateEucalyptus caleyi
Adult leaves narrow-lanceolate to lanceolate
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Eucalyptus fusiformis
16Inflorescences 3-floweredEucalyptus tricarpa
Inflorescences >3-flowered
                       Back to 6
Eucalyptus sideroxylon
17Adult leaves opposite, ovate to orbiculateEucalyptus melanophloia
Adult leaves disjunct, broad-lanceolate or narrow-lanceolate
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18Valves distinctly exserted (only weakly exserted in E. calidissima19
Valves not distinctly exserted
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19Buds not glaucous20
Buds glaucous
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20Calyptra more than twice as long as hypanthiumEucalyptus fibrosa
Calyptra less than twice as long as hypanthium
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21Disc flatEucalyptus ophitica
Disc depressed
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Eucalyptus siderophloia
22Hypanthium 4-ribbed, calyptra shorter than hypanthiumEucalyptus calidissima
: Hypanthium not ribbed; calyptra as long or much longer than hypanthium
                       Back to 19
Eucalyptus nubilis
23Calyptra conical, acute; juvenile leaves orbiculate to broad-lanceolate24
Calyptra rounded or obtuse; juvenile leaves linear to narrow-lanceolate
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24Buds glaucousEucalyptus nubilis
Buds not glaucous
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25Juvenile leaves broad-lanceolate to ovate, apex acute or obtuseEucalyptus siderophloia
Juvenile leaves orbiculate, apex rounded
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Eucalyptus fracta
26Fruit 2–4 mm diameter, juvenile leaves linear to lanceolateEucalyptus crebra
Fruit 7–9 mm diameter, juvenile leaves ovate to broad-lanceolateEucalyptus calidissima
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Not stringybarks
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28Fruit pyriform to conical, flat-topped; inflorescences aggregated or paired29
Fruit not as above; inflorescences usually solitary
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29Inflorescences axillary, often paired; calyptra scar absentEucalyptus fastigata
Inflorescences aggregated at shoot tips; calyptra scar present
                       Back to 28
Eucalyptus microcorys
30Fruit ovoid to urceolate and disc strongly depressed31
Fruit hemispherical to globose or ovoid; if ovoid then disc not strongly depressed
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31Fruit smooth32
Fruit ribbed
                       Back to 30
Eucalyptus planchoniana
32Adult leaves concolorousEucalyptus obliqua
Adult leaves strongly discolorous
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33Fruit 4-lobed at topEucalyptus baileyana
Fruit not 4-lobed at top
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34Buds and fruit sessileEucalyptus botryoides
Buds and fruit pedicellate
                       Back to 33
Eucalyptus robusta
35Leaves with lateral veins obtuse, reticulation dense and regular, juvenile leaves glabrous36
Leaves with lateral veins acute, reticulation sparse and irregular; juvenile leaves hairy
                       Back to 30
36Adult leaves strongly discolorousEucalyptus acmenoides
Adult leaves not strongly discolorous
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37Juvenile leaves broad-lanceolate to ovate38
Juvenile leaves narrow-lanceolate
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38Adult leaves greenEucalyptus umbra
Adult leaves blue
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Eucalyptus carnea
39Fruit 5–6 mm diam.Eucalyptus apothalassica
Fruit 6–8 mm diam.
                       Back to 37
Eucalyptus psammitica
40Buds and fruit distinctly pedicellate, fruit clusters open41
Buds and fruit sessile or shortly pedicellate (pedicels obscured if present), fruit clusters crowded
                       Back to 35
41Leaves strongly discolorousEucalyptus muelleriana
Leaves concolorous or weakly discolorous
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42Disc broad, raised43
Disc narrow, not raised
                       Back to 41
43Buds acute or rostrate44
Buds rounded
                       Back to 42
44Buds rostrate45
Buds acute
                       Back to 43
45Buds angularEucalyptus cannonii
Buds not angular
                       Back to 44
Eucalyptus macrorhyncha
46Buds angularEucalyptus subtilior
Buds not angular
                       Back to 44
Eucalyptus tindaliae
47Buds angularEucalyptus prominula
Buds not angular
                       Back to 43
Eucalyptus laevopinea
48Adult leaves with length:breadth ratio of <3:1Eucalyptus caliginosa
Adult leaves with length:breadth ratio of >3:1
                       Back to 42
49Adult leaves thin, noticeably discolorousEucalyptus eugenioides
Adult leaves not thin, concolorous
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Eucalyptus conjuncta
50Adult leaves with length:breadth ratio of >3:151
Adult leaves with length:breadth ratio of <3:1
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51Valves small, mostly enclosed52
Valves large, prominently exserted
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52Adult leaves with a bluish sheen53
Adult leaves green, without a bluish sheen
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53Juvenile leaves ovate (length:breadth ratio of 1.5–2:1), petiole >5 mm longEucalyptus agglomerata
Juvenile leaves broad-lanceolate to ovate (length:breadth ratio of 2–2.5:1), petiole <5 mm long
                       Back to 52
Eucalyptus subcaerulea
54Buds angularEucalyptus capitellata
Buds not angular
                       Back to 52
55Juvenile leaves broad-lanceolate to ovate56
Juvenile leaves narrow-lanceolate
                       Back to 54
56Fruit globose to flattened-globose57
Fruit hemispherical
                       Back to 55
Eucalyptus cameronii
57Adult leaves concolorous; south of the Hunter River58
Adult leaves slightly discolorous; north from Coffs Harbour
                       Back to 56
Eucalyptus tindaliae
58Fruit <7 mm diam.Eucalyptus oblonga
Fruit >7 mm diam.
                       Back to 57
Eucalyptus imitans
59Adult leaves mostly <6 cm longEucalyptus tenella
Adult leaves mostly >6 cm long
                       Back to 55
59Fruit hemisphericalEucalyptus mckieana
Fruit globose or flattened-globose
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61Adult leaves lanceolateEucalyptus sparsifolia
Adult leaves linear to narrow-lanceolate
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Eucalyptus ralla
62Branchlets glaucous, sharply 4-angled or winged; fruit with a medial ridge; usually malleesEucalyptus boliviana
Branchlets not glaucous, terete or moderately 4-angled; trees
                       Back to 51
63Intermediate leaves orbiculateEucalyptus williamsiana
Intermediate leaves oblong or elliptic
                       Back to 62
64Buds and adult leaves glossy greenEucalyptus youmanii
Buds and leaves ± dull, ± bluish
                       Back to 63
Eucalyptus subtilior
65Disc flat, valves mostly enclosed66
Disc raised, valves distinctly exserted
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66Buds finely wartyEucalyptus baxteri
Buds not warty
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67Buds angular68
Buds not angular
                       Back to 66
68Juvenile leaves cordateEucalyptus camfieldii
Juvenile leaves ovate
                       Back to 67
Eucalyptus bensonii
69Adult leaves similifacialEucalyptus ligustrina
Adult leaves dorsiventral
                       Back to 67
70Disc thick, flatEucalyptus globoidea
Disc thin, slightly depressed
                       Back to 69
Eucalyptus yangoura
71Shrubs and mallees; branchlets glaucousEucalyptus boliviana
Trees; branchlets not glaucous
                       Back to 65
Eucalyptus blaxlandii
72Valves of fruit enclosed73
Valves of fruit exserted
                       Back to 27
73Adult leaves strongly discolorous74
Adult leaves concolorous or weakly discolorous
                       Back to 72
74Adult leaves closely penniveined75
Adult leaves not closely penniveined
                       Back to 73
75Buds and fruit sessileEucalyptus botryoides
Buds and fruit pedicellate
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76Fruit cylindrical to urceoolate, 10–18 mm long, 6–11 mm diam.Eucalyptus robusta
Fruit conical to pyriform, 5–9 mm long, 4–6 mm diam.
                       Back to 75
Eucalyptus microcorys
77Stamens regularly inflexed78
Stamens irregularly flexed
                       Back to 74
Eucalyptus rummeryi
78Adult leaves with some stomates on the upper surfaceEucalyptus rudderi
Adult leaves with stomates on the lower surface only
                       Back to 77
79Fruit ovoid, 3–5 mm long, 2–4 mm diam.Eucalyptus hypostomatica
Fruit conical to pyriform, 5–9 mm long, 4–6 mm diam.
                       Back to 78
Eucalyptus microcorys
80Juvenile leaves opposite for many pairs81
Juvenile leaves opposite for only a few pairs
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81Branchlets square82
Branchlets not square
                       Back to 80
82Buds and fruit glaucousEucalyptus pyrocarpa
Buds and fruit not glaucous
                       Back to 81
Eucalyptus pilularis
83Adult leaves broad-lanceolate to ovate84
Adult leaves mostly lanceolate or narrower
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84Adult leaves with 3 longitudinal veins (3-veined)85
Adult leaves with only 1 longitudinal vein (midvein)
                       Back to 83
Eucalyptus dives
85Juvenile leaves elliptic or orbiculateEucalyptus stellulata
Juvenile leaves narrow-elliptic
                       Back to 84
Eucalyptus copulans
86Adult leaves green87
Adult leaves blue
                       Back to 83
87Bark rough on branches; disc flat88
Branches wholly smooth; disc depressed
                       Back to 86
Eucalyptus elata
88Calyptra scar absentEucalyptus radiata
Calyptra scar present
                       Back to 87
Eucalyptus aggregata
89Adult leaves often >1.5 cm wideEucalyptus croajingolensis
Adult leaves <1.5 cm wide
                       Back to 86
Eucalyptus robertsonii
90Calyptra scar absent91
Calyptra scar present
                       Back to 80
91Stamens regularly inflexed92
Stamens irregularly flexed in bud
                       Back to 90
92Anthers adnate, dehiscing through separate slits93
Anthers versatile, reniform, dehiscing through confluent slits
                       Back to 91
93Fruit much longer than broadEucalyptus ochrophloia
Fruit about as long as broad
                       Back to 92
Eucalyptus melliodora
94Fine peppermint bark95
Coarse thick fissured or fibrous bark
                       Back to 92
95Fruit hemisphericalEucalyptus andrewsii
Fruit not hemispherical
                       Back to 94
96Northern Tablelands speciesEucalyptus campanulata
South Coast and Southern Tablelands species
                       Back to 95
Eucalyptus consideniana
97Disc depressedEucalyptus stenostoma
Disc flat
                       Back to 94
98Twigs glaucous, with a peppermint smellEucalyptus sieberi
Twigs not glaucous, with an unpleasant smell
                       Back to 97
Eucalyptus olida
99Juvenile leaves green100
Juvenile leaves blue
                       Back to 91
100Juvenile leaves hairy; fruit 13–18 mm diam.Eucalyptus olsenii
Juvenile leaves not hairy; fruit 2–10 mm diam.
                       Back to 99
101Fruit with 5 or 6 valvesEucalyptus bosistoana
Fruit with 3 or 4 valves
                       Back to 100
102Adult leaves >1.5 cm wide103
Adult leaves <1.5 cm wide
                       Back to 101
103Disc depressed104
Disc flat
                       Back to 102
Eucalyptus fastigata
104Anthers versatile, reniform, dehiscing through confluent slitsEucalyptus obliqua
Anthers adnate, dehiscing through separate slits
                       Back to 103
105Adult leaves >2 cm wide; buds 5–9 mm longEucalyptus moluccana
Adult leaves <2 cm wide; buds 4–7 mm long
                       Back to 104
Eucalyptus microcarpa
106Fruit <7 m diam.107
Fruit >7 mm diam.
                       Back to 102
                       Back to 106
108Anthers versatile, reniform, dehiscing through confluent slitsEucalyptus paliformis
Anthers adnate, dehiscing through separate slits
                       Back to 107
Eucalyptus pilligaensis
109Adult leaves <1.0 cm wideEucalyptus viridis
Adult leaves >1.0 cm wide
                       Back to 107
Eucalyptus porosa
110Inflorescences 3-floweredEucalyptus triflora
Inflorescences 7-flowered
                       Back to 106
111Fruit urceolateEucalyptus fraxinoides
Fruit globose
                       Back to 110
Eucalyptus dendromorpha
112Disc flatEucalyptus oreades
Disc depressed
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113Buds rounded; fruit >8 mm diam.114
Buds acute; fruit <8 mm diam.
                       Back to 112
114Anthers versatile, reniform, dehiscing through confluent slitsEucalyptus delegatensis
Anthers adnate, dehiscing through separate slits
                       Back to 113
Eucalyptus albens
115Anthers versatile, reniform, dehiscing through confluent slitsEucalyptus piperita
Anthers adnate, dehiscing through separate slits
                       Back to 113
Eucalyptus polybractea
116Stamens regularly inflexed117
Stamens irregularly flexed
                       Back to 90
117Adult leaves broad-lanceolate to ovate or elliptic118
Adult leaves linear to lanceolate, occasionally broad-lanceolate
                       Back to 116
118Fruit at least 6 mm long and 6 mm diam.Eucalyptus magnificata
Fruit usually <6 mm long and 6 mm diam.
                       Back to 117
119Adult leaves without loose white surface wax; coastal speciesEucalyptus baueriana
Adult leaves glaucous with loose white surface wax; tablelands and Western Slopes species
                       Back to 118
Eucalyptus polyanthemos
120Inflorescences 3-floweredEucalyptus longifolia
Inflorescences >3-flowered
                       Back to 117
                       Back to 120
122Fruit hemispherical to ovoid123
Fruit conical
                       Back to 121
Eucalyptus conica
123Outer stamens infertileEucalyptus rudderi
All stamens fertile
                       Back to 122
Eucalyptus intertexta
124Pith glands presentEucalyptus costata
Pith glands absent
                       Back to 121
125Disc broad, slightly depressedEucalyptus leptophylla
Disc narrow, steeply depressed
                       Back to 124
126Fruit 4-angledEucalyptus calycogona
Fruit smooth
                       Back to 125
Eucalyptus gracilis
127Buds and twigs glaucousEucalyptus nortonii
Buds and twigs non-glaucous
                       Back to 116
128Adult leaves narrow-lanceolate to lanceolate129
Adult leaves broad-lanceolate to ovate or ± elliptic, rarely lanceolate
                       Back to 127
129Fruit <5 mm diam.130
Fruit >5 mm diam.
                       Back to 128
130Anthers adnate131
Anthers versatile
                       Back to 129
131Juvenile leaves broad-lanceolate (coastal forest tree)Eucalyptus largeana
Juvenile leaves linear (far inland woodland tree)
                       Back to 130
Eucalyptus largiflorens
132Fruit hemispherical; adult leaves dullEucalyptus acaciiformis
Fruit conical; adult leaves glossy
                       Back to 130
Eucalyptus aggregata
133Fruit sessileEucalyptus goniocalyx
Fruit pedicellate
                       Back to 129
134Juvenile leaves greenEucalyptus retinens
Juvenile leaves glaucous
                       Back to 133
Eucalyptus volcanica
                       Back to 128
Eucalyptus behriana
136Anthers adnateEucalyptus populnea
Anthers versatile
                       Back to 135
Eucalyptus ovata
137Adult leaves strongly discolorous138
Adult leaves concolorous
                       Back to 72
138Fruit >10 mm diam.Eucalyptus scias
Fruit <10 mm diam.
                       Back to 137
139Calyptra about as long as hypanthiumEucalyptus notabilis
Calyptra much longer than hypanthium
                       Back to 138
Eucalyptus resinifera
140Fruit sessile141
Fruit pedicellate
                       Back to 137
141Inflorescences 3-flowered142
Inflorescences 7- or more-flowered
                       Back to 140
142Adult leaves opposite143
Adult leaves disjunct
                       Back to 141
143Fruit conicalEucalyptus cinerea
Fruit campanulate
                       Back to 142
Eucalyptus triplex
144Juvenile leaves greenEucalyptus badjensis
Juvenile leaves grey or blue
                       Back to 142
145Fruit ovoidEucalyptus chapmaniana
Fruit campanulate
                       Back to 144
146Branches smoothEucalyptus kartzoffiana
Branches with persistent fibrous bark
                       Back to 145
Eucalyptus alligatrix
147Peduncle <3 mm longEucalyptus banksii
Peduncle >3 mm long
                       Back to 141
148Fruit >6 mm diam.149
Fruit <6 mm diam.
                       Back to 147
149Adult leaves blue150
Adult leaves green
                       Back to 148
Eucalyptus goniocalyx
150Many adult leaves oppositeEucalyptus conspicua
Adult leaves disjunct
                       Back to 149
Eucalyptus nortonii
151Valves acuteEucalyptus quadrangulata
Valves obtuse
                       Back to 148
Eucalyptus macarthurii
152Calyptra >1.5 times as long as hypanthium153
Calyptra equal in length to hypanthium
                       Back to 140
153Disc raised154
Disc not raised
                       Back to 152
154Inflorescences 3-floweredEucalyptus morrisii
Inflorescences 7-flowered
                       Back to 153
Eucalyptus exserta
155Disc flatEucalyptus bakeri
Disc sharply depressed
                       Back to 153
156Mallees; inflorescences solitary157
Trees; inflorescences often paired
                       Back to 155
Eucalyptus squamosa
157Adult leaves opposite, ovate to broad-lanceolate or ellipticEucalyptus gillii
Adult leaves disjunct, lanceolate to broad-lanceolate
                       Back to 156
Eucalyptus socialis
158Inflorescences compoundEucalyptus coolabah
Inflorescences simple
                       Back to 152
159Inflorescences often paired160
Inflorescences solitary
                       Back to 158
160Calyptra scar presentEucalyptus squamosa
Calyptra scar absent
                       Back to 159
Eucalyptus fastigata
161Juvenile leaves linear162
Juvenile leaves broad-lanceolate or broader
                       Back to 159
162Disc level or raised163
Disc steeply depressed
                       Back to 161
Eucalyptus oleosa
163Bark shedding from bases of larger branchesEucalyptus smithii
Bark persisting to smaller branches
                       Back to 162
164Adult leaves mostly >1 cm wideEucalyptus corticosa
Adult leaves mostly <1 cm wide
                       Back to 163
Eucalyptus nicholii
165Buds glaucous166
Buds not glaucous
                       Back to 161
166Fruit 6–8 mm diam.Eucalyptus malacoxylon
Fruit 4–5 mm diam.
                       Back to 165
Eucalyptus nova-anglica
167Juvenile leaves green168
Juvenile leaves blue
                       Back to 165
168Fruit >5 mm diam.Eucalyptus angophoroides
Fruit <5 mm diam.
                       Back to 167
169Fruit conicalEucalyptus aggregata
Fruit hemispherical or rounded
                       Back to 168
Eucalyptus acaciiformis
170Juvenile leaves orbiculate171
Juvenile leaves narrow-elliptic
                       Back to 167
Eucalyptus ignorabilis
171Fruit >5 mm longEucalyptus bridgesiana
Fruit <5 mm long
                       Back to 170
Eucalyptus nova-anglica
172Valves of fruit enclosed173
Valves of fruit exserted
                       Back to 1
173Inflorescences compound174
Inflorescences simple
                       Back to 172
174Fruit conical or ovoid175
Fruit hemispherical
                       Back to 173
Eucalyptus michaeliana
175Stamens regularly inflexed, outer whorls infertileEucalyptus polyanthemos
Stamens irregularly flexed, all fertile
                       Back to 174
Eucalyptus dawsonii
176Fruit sessile177
Fruit pedicellate
                       Back to 173
177Inflorescences 3-flowered178
Inflorescences 7-flowered or more
                       Back to 176
178Adult leaves often opposite179
Adult leaves disjunct
                       Back to 177
179Opposite pairs of juvenile leaves fused at baseEucalyptus perriniana
Juvenile leaves free
                       Back to 178
180Adult leaves <10 mm wideEucalyptus recurva
Adult leaves >10 mm wide
                       Back to 179
Eucalyptus pulverulenta
181Fruit cylindrical or ovoid, disc flat or depressed; juvenile leavesEucalyptus glaucescens
Fruit campanulate, disc slightly raised; juvenile leaves <4 cm long and wide
                       Back to 178
Eucalyptus saxatilis
                       Back to 177
183Calyptra scar presentEucalyptus nitens
Calyptra scar absent
                       Back to 182
184Buds in stellate clusters185
Buds not in stellate clusters
                       Back to 183
185Juvenile leaves elliptic or orbiculateEucalyptus stellulata
Juvenile leaves narrow-elliptic
                       Back to 184
Eucalyptus copulans
186Adult leaf venation subparallel187
Adult leaves with a distinct midrib
                       Back to 184
187Fruit angularEucalyptus debeuzevillei
Fruit not angular
                       Back to 186
Eucalyptus niphophila
188Fruit broader than long; juvenile leaves greenEucalyptus kybeanensis
Fruit longer than broad; juvenile leaves blue
                       Back to 186
Eucalyptus oreades
189Adult leaves often oppositeEucalyptus sturgissiana
Adult leaves disjunct
                       Back to 182
190Buds in stellate clusters191
Buds not in stellate clusters
                       Back to 189
191Juvenile leaves ovate to ellipticEucalyptus moorei
Juvenile leaves linear to lanceolate
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192Juvenile leaves lanceolate, adult leaves often >1 cm wideEucalyptus dissita
Juvenile leaves linear to narrow-lanceolate, adult leaves <1 cm wide
                       Back to 191
Eucalyptus moorei
193Calyptra scar absentEucalyptus kybeanensis
Calyptra scar present
                       Back to 190
Eucalyptus dumosa
194Venation in adult leaves subparallel195
Venation in adult leaves not subparallel
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195Mallees; leaves lanceolate or narrowerEucalyptus gregsoniana
Trees; leaves lanceolate to ovate
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196Internodes often >3 cm longEucalyptus lacrimans
Internodes <3 cm long
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197Buds strongly glaucousEucalyptus niphophila
Buds not strongly glaucous
                       Back to 196
Eucalyptus pauciflora
                       Back to 194
199Adult leaves >1.5 cm wide200
Adult leaves <1.5 cm wide
                       Back to 198
200Adult leaves with lateral veins strongly acute (<30° to midrib)Eucalyptus multicaulis
Adult leaves with lateral veins 30–50° to midrib
                       Back to 199
201Disc flatEucalyptus luehmanniana
Disc depressed
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202Buds glaucousEucalyptus stenostoma
Buds not glaucous
                       Back to 201
203Twigs wingedEucalyptus langleyi
Twigs not winged
                       Back to 202
204Juvenile leaves dull, subglaucous; adult leaves to 3.5 cm wideEucalyptus burgessiana
Juvenile leaves glossy green; adult leaves to 2.5 cm wide
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205Fruit 8–11 mm diam.Eucalyptus obstans
Fruit 3–5 mm diam.
                       Back to 204
Eucalyptus aenea
206Disc flat207
Disc depressed
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207Disc broadEucalyptus codonocarpa
Disc narrow
                       Back to 206
208Leaves thickEucalyptus approximans
Leaves thin
                       Back to 207
Eucalyptus microcodon
209Adult leaves <8 mm wide210
Adult leaves often >8 mm wide
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210Immature adult leaves pinkish grey; longest peduncles <8 mm longEucalyptus cunninghamii
Immature adult leaves green; longest peduncles >8 mm long
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211Largest fruit >8 mm diam.; leaves usually <9 cm long, if longer then >7 mm wideEucalyptus laophila
Largest fruit <8 mm diam.; longest leaves >9 cm long and <7 mm wide
                       Back to 210
Eucalyptus apiculata
212Fruit 3–5 mm diam.Eucalyptus aenea
Fruit 6–11 mm diam.
                       Back to 209
213Adult leaves <10 mm wideEucalyptus stricta
Adult leaves >10 mm wide
                       Back to 212
Eucalyptus spectatrix
214Calyptra scar absent215
Calyptra scar present
                       Back to 198
215Disc flat216
Disc not flat
                       Back to 214
216Adult leaves dull217
Adult leaves glossy
                       Back to 215
217Tablelands and Western Slopes speciesEucalyptus rossii
Coastal species
                       Back to 216
218Adult leaves <1.8 cm wideEucalyptus racemosa
Adult leaves >1.9 cm wide
                       Back to 217
Eucalyptus signata
219Fruit >7 mm diam.Eucalyptus haemastoma
Fruit <7 mm diam.
                       Back to 216
220Coastal species north from MorissetEucalyptus signata
Sydney region, Blue Mtns and south
                       Back to 219
Eucalyptus racemosa
221Fruit large (13–18 mm diam.), ribbedEucalyptus olsenii
Fruit small (4–10 mm diam.), not ribbed
                       Back to 215
222Anthers versatile, reniform, dehiscing through confluent slitsEucalyptus paliformis
Anthers adnate, dehiscing through separate slits
                       Back to 221
223Inflorescences 3-floweredEucalyptus leucoxylon
Inflorescences 7-flowered
                       Back to 222
Eucalyptus melliodora
224Juvenile leaves opposite for few pairsEucalyptus ovata
Juvenile leaves opposite for many pairs
                       Back to 214
225Buds rounded, outer calyptra not shedding cleanlyEucalyptus benthamii
Buds pointed, outer calyptra shedding cleanly
                       Back to 224
226Inflorescences 3-floweredEucalyptus wilcoxii
Inflorescences 7-flowered
                       Back to 225
227Fruit >5 mm diam.228
Fruit <5 mm diam.
                       Back to 226
Eucalyptus dorrigoensis
228Buds 4–5 mm diam.Eucalyptus cypellocarpa
Buds 2.5–3.5 mm diam.
                       Back to 227
Eucalyptus oresbia
229Calyptra >1.5 times as long as hypanthium230
Calyptra <1.5 times as long as hypanthium
                       Back to 172
230Buds glaucous231
Buds not glaucous
                       Back to 229
231Disc domed, >1.5 mm wideEucalyptus glaucina
Disc ± flat, <1.5 mm wide
                       Back to 230
232Calyptra cylindricalEucalyptus prava
Calyptra conical
                       Back to 231
Eucalyptus dealbata
233Calyptra cylindricalEucalyptus bancroftii
Calyptra conical or rostrate
                       Back to 230
234Calyptra rostrateEucalyptus camaldulensis
Calyptra conical
                       Back to 233
235Calyptra >2.5 times as long as hypanthium236
Calyptra 1.5–2 times as long as hypanthium
                       Back to 234
236Inflorescences >7-floweredEucalyptus amplifolia
Inflorescences 7-flowered
                       Back to 235
237Seeds black238
Seeds red
                       Back to 236
238Fruit >6 mm in diam.Eucalyptus tereticornis
Fruit <6 mm in diam.
                       Back to 237
Eucalyptus blakelyi
239Fruit >5 mm long, adult leaves lanceolateEucalyptus interstans
Fruit <5 mm long, adult leaves narrow-lanceolate
                       Back to 237
Eucalyptus seeana
240Juvenile leaves ovate to orbiculate241
Juvenile leaves narrow-lanceolate to lanceolate
                       Back to 235
                       Back to 240
Eucalyptus chloroclada
242Adult leaves penniveined, glossy; coastal speciesEucalyptus pumila
Adult leaves with open venation, dull; inland plains species
                       Back to 241
Eucalyptus vicina
243Trees; seeds redEucalyptus parramattensis
Mallees; seeds black
                       Back to 240
244Fruit >5 mm diam.Eucalyptus dwyeri
Fruit <5 mm diam.
                       Back to 243
Eucalyptus nandewarica
245Inflorescences 3-flowered246
Inflorescences 7- or more-flowered
                       Back to 229
246Fruit >10 mm diam.247
Fruit <10 mm diam.
                       Back to 245
247Peduncles >3 mm longEucalyptus pseudoglobulus
Peduncles <3 mm long
                       Back to 246
Eucalyptus bicostata
248Juvenile leaves broad lanceolate to ovate, to orbiculate or elliptic249
Juvenile leaves lanceolate
                       Back to 246
249Buds glaucous250
Buds not glaucous
                       Back to 248
250Juvenile stems roundedEucalyptus rubida
Juvenile stems markedly quadrangular
                       Back to 249
Eucalyptus canobolensis
251Juvenile leaves greyEucalyptus dalrympleana
Juvenile leaves green
                       Back to 249
252Calyptra as wide as hypanthiumEucalyptus imlayensis
Calyptra narrower than hypanthium
                       Back to 251
Eucalyptus baeuerlenii
253Calyptra narrower than hypanthiumEucalyptus wilcoxii
Calyptra as wide as hypanthium
                       Back to 248
Eucalyptus viminalis
254Adult leaves discolorous255
Adult leaves concolorous
                       Back to 245
255Disc raised or ± level256
Disc depressed
                       Back to 254
256Fruit >10 mm diam.Eucalyptus canaliculata
Fruit <10 mm diam.
                       Back to 255
257Valves apiculate, vertically raisedEucalyptus major
Valves obtuse, incurved
                       Back to 256
258Fruit <6 mm diam.Eucalyptus propinqua
Fruit 6–10 mm diam.
                       Back to 257
259Calyptra narrower than hypanthiumEucalyptus biturbinata
Calyptra as wide as hypanthium
                       Back to 258
Eucalyptus punctata
260Buds glaucous, valves broad-triangular, incurvedEucalyptus grandis
Buds not glaucous
                       Back to 255
261Adult leaves lanceolate; valves narrow-acuminateEucalyptus saligna
Adult leaves broad-lanceolate or broader; valves triangular, acute
                       Back to 260
262Calyptra rounded, pedicels <4 mm longEucalyptus brunnea
Calyptra pointed, pedicels >4 mm long
                       Back to 261
Eucalyptus deanei
263Adult leaves often opposite, <3 cm longEucalyptus parvula
Adult leaves disjunct, >3 cm long
                       Back to 254
264Inflorescences usually paired in leaf axilsEucalyptus pachycalyx
Inflorescences solitary in leaf axils
                       Back to 263
265Adult leaves broad-lanceolate or broader266
Adult leaves lanceolate or narrower
                       Back to 264
266Adult leaves rounded or mucronate267
Adult leaves acute
                       Back to 265
Eucalyptus ovata
267Petioles 6–11 mm long; adult leaves 1.2–3.5 cm wide; peduncles 3–9 mm longEucalyptus aquatica
Petioles 10–20 mm long; adult leaves 3.0–5.0 mm wide; peduncles 10–18 mm long
                       Back to 266
Eucalyptus camphora
268Bark shed in long ribbons269
Bark shed in scales
                       Back to 265
269Juvenile leaves ovate or broader270
Juvenile leaves lanceolate
                       Back to 268
270Buds glaucous271
Buds not glaucous
                       Back to 269
271Calyptra finely warty, apiculateEucalyptus maidenii
Calyptra smooth, not apiculate
                       Back to 270
Eucalyptus rubida
272Adult leaves apparently finely toothed; outer calyptra not shedding cleanlyEucalyptus denticulata
Adult leaves entire; outer calyptra shedding cleanly
                       Back to 270
Eucalyptus dalrympleana
273Calyptra scar present274
Calyptra scar absent
                       Back to 269
274Buds 4–7 mm long; pedicels 1–4 mm longEucalyptus nobilis
Buds 9–13 mm long; pedicels <2 mm long
                       Back to 273
Eucalyptus quinniorum
275Calyptra hemisphericalEucalyptus kybeanensis
Calyptra conical, acute
                       Back to 273
Eucalyptus deuaensis
276Juvenile leaves linear or lanceolate277
Juvenile leaves broad lanceolate to ovate, elliptic or orbiculate
                       Back to 268
                       Back to 276
278Bark irregularly shedding, patchy, not powderyEucalyptus parramattensis
Bark clean or lightly mottled, powdery
                       Back to 277
Eucalyptus mannifera
279Fruit >5 mm diam.Eucalyptus dwyeri
Fruit <5 mm diam.
                       Back to 277
Eucalyptus nandewarica
                       Back to 276
281Adult leaves penniveined, glossy; coastal speciesEucalyptus pumila
Adult leaves with open venation, dull; inland plains species
                       Back to 280
Eucalyptus vicina
282Juvenile leaves disjunctEucalyptus chloroclada
Juvenile leaves opposite for >10 nodes
                       Back to 280
283Juvenile leaves not crenate284
Juvenile leaves crenate, remaining opposite for several years
                       Back to 282
Eucalyptus dunnii
284Fruit <5 mm long and <5 mm in diam.285
Fruit 5 mm long and 5 mm in diam. or more
                       Back to 283
285Buds acute; outer calyptra shedding cleanlyEucalyptus dorrigoensis
Buds rounded; outer calyptra not shedding cleanly
                       Back to 284
Eucalyptus benthamii
286Fruit 5–6 mm longEucalyptus lactea
Fruit 6–8 mm long
                       Back to 284
Eucalyptus elliptica

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