Eucalyptus

Eucalyptus is a large genus with so many species often difficult to separate, but here are tips to separate them
E. citriodora are rather distinct from others in strongly scented (more like odomos) leaves when crushed, flower buds almost as long as broad, cap pinkish, hemispherical and cup like with sunkun disc.
E. camaldulensis has similar shaped flower buds but light brown and not pinkish cap which is distinctly pointed, fruit has 4-5 slightly raised teeth in the center.
E. microtheca has narrow leaves forming dense drooping canopy, buds very small usually less than 5 mm long, pointed at tip, fruits barely 3-4 mm long with 3-3 spreading teeth longer than base.
E. tereticornis buds are longer, often up to 1.5 cm long, cap much longer than base and gradually tapered, fruit with 4-5 teeth, projecting upwards almost as long as base.
E. globulus has usually single large flower, fruit more than 20 mm across
E. polyanthemos is very distinct in its almost rounded leaves, flowers in panicles and hemispherical cap
E. leucoxylon with usually 3-flowered clusters, on up to 12 mm long peduncles, conical cap, as long as base, fruit 10-12 mm across.

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Binomial Habit Notes References Distribution English name
Eucalyptus
alpina Lindl. = Eucalyptus baxteri (Benth.) Maiden & Blakely ex J. M. Black		 Tree Western Ghats,
High Altitude, Cultivated, Native of Australia 		 Flora of Tamil
Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus amygdalina Labill. = Eucalyptus salicifolia Cav. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus blakelyi Maiden Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Blakely’s
Red Gum
Eucalyptus bosistoana F. v. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus botryoides Sm. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		  
Eucalyptus bridgesiana R. T. Baker Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Apple
Box
Eucalyptus calophylla R. Br. ex Lindl. = Corymbia calophylla (Lindl.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		  
Eucalyptus camaldulensis Dehnh. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		 River
Red Gum
Eucalyptus cephalocarpa Blakely Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Mealy
Stringy Bark
Eucalyptus citriodora Hook. = Corymbia citriodora (Hook.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		 Lemon
– scented Gum
Eucalyptus cladocalyx F. v. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Sugar
Gum
Eucalyptus crebra F. v. Muell Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Narrowse
– leaved red ironbark
Eucalyptus cypellocarpa L.A.S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Mountain
Grey Gum
Eucalyptus diversicolor F. v. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul  
Eucalyptus elata Dehnh Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul River
Peppermint
Eucalyptus eugenioides Sieb. ex Spreng. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus ficifolia F. v. Muell = Corymbia ficifolia (F. Muell.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		 Red-
flowering Gum
Eucalyptus globulus Labill. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Erode, Kanniyakumari, Nilgiri, Salem, Theni, Tirunelveli		 Tasmamian
Blue Gum
Eucalyptus grandis W.Hill ex Maiden Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Flooded/
Rose Gum
Eucalyptus hemiphloia F. v. Muell = Eucalyptus moluccana Roxb. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus leucadendron Reinz. ex DeVriese is a synonym of Eucalyptus alba Reinw. ex Blume Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus leucoxylon F. v. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus longifolia Link & Otto Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Woollybutt
Eucalyptus macarthurii Deane & Maiden Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Camden
Woollybutt
Eucalyptus maculata Hook. = Corymbia maculata (Hook.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Spotted
Gum
Eucalyptus megacornuta C. A. Gardener Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Warted
Yate
Eucalyptus melliodora A. Cunn ex Schau. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus microcorys F. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Tallow
– Wood
Eucalyptus nitida Hook. f. = Eucalyptus ambigua DC. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Smithton
Peppermint
Eucalyptus nova-anglica Deane & Maiden Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul  
Eucalyptus obliqua L. Her. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Messmate
Stringybark
Eucalyptus ovata Labill. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Swamp
Gum
Eucalyptus paniculata Sm. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus pauciflora Sieb ex Spreng. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		 Snow
Gum
Eucalyptus piperita Sm. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Sydney
Peppermint
Eucalyptus polyanthemos Schauer Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Red
Box
Eucalyptus ptychocarpa F. v. Muell. = Corymbia ptychocarpa (F. Muell.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus punctata DC.  Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul,
Nilgiri		 Grey
Gum
Eucalyptus radiata Sieb. ex DC. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Narrow
– leaved Peppermint
Eucalyptus regnans F. v. Muell. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Mountain
Ash
Eucalyptus resinifera Sm Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Red
Mahogany
Eucalyptus robusta Sm. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Swamp
Mahogany
Eucalyptus rossii R. T. Baker & H. G.
Sm. = Eucalyptus racemosa subsp. rossii (R. T. Baker & H. G. Sm.) B. E. Pfeil & Henwood		 Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul  
Eucalyptus saligna Sm. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983; Wealth of India, 1952		 Dindigul,
Nilgiri		 Sydney
Blue Gum
Eucalyptus siderophloia Benth. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Matthew,
1999		 Dindigul Ironbark
Eucalyptus sideroxylon A. Cunn.ex.Woolls Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		   Dindigul Red
Ironbark
Eucalyptus staigeriana F. v. Muell. ex
Bailey		 Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus tereticornis Sm. Tree Plains
to Low Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 All
districts		  
Eucalyptus torelliana F. v. Muell. = Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Nilgiri  
Eucalyptus viminalis Labill. Tree Western
Ghats, High Altitude, Cultivated, Native of Australia 		 Flora
of Tamil Nadu, VOL. I, 1983		 Dindigul Manna
Gum
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Botanical name Family Common name
Eucalyptus deglupta Myrtaceae Rainbow Eucalyptus
Eucalyptus microtheca Myrtaceae Coolabah
Eucalyptus tereticornis Myrtaceae Forest Red Gum
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Eucalyptus citriodora = Corymbia citriodora (Hook.) K. D. Hill & L. A. S. Johnson

Eucalyptus torelliana = Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson

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ABSTRACT : Eucalypt has come to stay in India. Large scale plantations have been raised in government owned and private farm lands; the planting is continuing. There is vast potential to grow the species economically on farm and waste land in suitable zones. Eucalypt meets requirements of people and industries and has helped to reduce pressure on natural forests. The uses of eucalypt are varied; people are realising this fast. The economical, social and ecological aspects of the species are receiving proper attention to understand its impact and to avoid indisriminate planting. The present studies are not conclusive, particularly in ecological aspects; further studies are indicated. Growth is varied; clonal selection, propagation and planting will improve uniform production. Government intervention in marketing is necessary to safeguard the interest of farmers.
Plantations raised in some of the important States
Andhra Pradesh: The main species raised is Eucalyptus hybrid, other species are E. camaldulensis and E. tereticornis.
Bihar: The species planted is E. hybrid;
Haryana: Eucalyptus hybrid, E. citriodora, and E. crebra were introduced in Haryana State during the forties.
Kerala: Over 38,000 ha of plantations of Eucalyptus grandis were raised by the Forest Department in grass lands in high rainfall ranges
since 1958. Most of these plantations died due to pink disease. The effort of planting of Eucalyptus tereticornis at lower elevations for supply of
pulpwood did not show much success.
Maharashtra: The main species raised are E. hybrid and E. camaldulensis in the dry zone. In high rainfall areas Eucalyptus grandis followed by E. robusta and Eucalyptus saligna were found to be more suitable.
Punjab: Under the Social Forestry Schemes farmers were encouraged to grow Eucalyptus hybrid on boundaries of agricultural fields and on either
side of irrigation channels.
Tamil Nadu: Eucalyptus globulus plantations were raised in Nilgiri and Kodaikanal hills in the past to meet the firewood needs. At medium
elevations Eucalyptus hybrid was raised.
Uttar Pradesh: Large scale planting of Eucalyptus hybrid was started in U.P. in 1962 in the Terai region with mechanisation practices.
Karnataka: Eucalyptus hybrid is also one of the species in over 443,000 ha of miscellaneous plantations raised. In addition, the Forest Plantation Corporation has raised 48,000 ha of Eucalyptus hybrid plantations.
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Comparison of various eucalyptus species for their morphological, chemical, pulp. : Indian Journal of Chemical Technology. Vol. 18, March 2011, pp. 145-151. :
Eucalyptus euryphylla (L.A.S.Johnson ex G.J.Leach) Brookeris a synonym of Angophora euryphylla (L.A.S.Johnson ex G.J.Leach) L.A.S.Johnson & K.D.Hill
Eucalyptus torelliana = Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson

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India’s Eucalyptus Craze: The God that Failed by N C Saxena SAGE Publications, 09-Aug-1994 – Business & Economics – 264 pages

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Eucalyptus: The Genus Eucalyptus edited by John J.W. Coppen (2003)- Details

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Eucalyptus: Enduring Myths, Stunning Realities By S.A. Abbasi (2004)- Details

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An Excursion Flora of Central Tamilnadu, India By K. M. Matthew (1995)- Details with keys–

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CRC World Dictionary of Medicinal and Poisonous Plants: Common Names … By Umberto Quattrocchi (2012)- Detilas- p. 1653-
Eucalyptus citriodora = Corymbia citriodora (Hook.) K. D. Hill & L. A. S. Johnson

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Eucalyptus & Corymbia : 1 post by 1 author.

I have updated eFI (efloraofindia) page on Eucalyptus & Corymbia

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of species found in India with source references it will be wonderful.

Any comments/ corrections are welcome.

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Pl. go through ‎Eucalyptus ‎(Myrtaceae) page with images of species in efloraofindia.

If you find any incorrect identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.