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Centre for Plant Biodiversity Research

EUCLID heading

M.I.H. Brooker, J.R. Connors and A.V. Slee

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EUCLID is a computer-based, interactive
identification and information system for
It runs in the LucID software.

It has been produced by the Centre for Plant Biodiversity Research from the Australian National Herbarium database of over 60 000 eucalypt specimens as well as information derived from glasshouse studies for details of comparative juvenile morphology, and from widespread field observations. It was first published in 1997 and has now been revised to include all the species of Angophora

 Eucalypts have been difficult to identify in the past but now with EUCLID and a minimum of plant material and/or instructive illustrations, the task has been made simple. 

 EUCLID (EUCaLyptus IDentification) allows the user to quickly and easily identify any of the 324 species and subspecies of Eucalyptus and Angophora native to south-eastern Australia, i.e. New South Wales, Australian Capital Territory, Victoria, Tasmania and part of South Australia. 


Region of Australia covered by EUCLID I

Identifications are achieved by matching features of the specimen with features from any of the 120 different characters available in the key. The characters are arranged into sets and these sets contain information about the natural distribution, habit, bark, flower buds, fruits, seeds, juvenile leaves, and habitat. Characters can be selected in any order. The great advantage over traditional identification keys is that EUCLID gives the freedom to avoid characters that are unavailable or difficult to assess. 

 To enhance the word descriptions, each character is illustrated by line drawings, colour pictures or scanning electron micrographs. Most species are also illustrated by a range of colour photos of the habit, bark, leaf venation, buds, flowers, fruits and a map of the natural geographic distribution. 


leaves eucalypt image fruit illust: leaves

The database includes extra information on nomenclature and synonymies, a description of each species, notes on related or similar species and how they may be distinguished. Uses for the species such as timber, fibre, honey production, shelter and ornamentation are also included. 

The next phase of this project, Euclid II - Eucalypts of south-western Australia, is well under way and is due for completion in the year 2001. When finished, it will include all the species and subspecies (c. 420 taxa) that are native to South Australia and the area of Western Australia south of the 26 th line of latitude. 

Region of Australia covered by EUCLID II


EUCLID is designed for use by anyone who wants to identify eucalypts. Professionals, researchers, botanists, foresters, nurserymen, students, educators, land managers, farmers, horticulturalists and gardeners will all find this an essential tool for identifying eucalypts. 



  • First in the world - illustrated Eucalypt Interactive Identification system on CD-ROM.

  • User-friendly electronic, rapid identification system for eucalypts.

  • Works under Windows environment.

  • Allows on-screen images of different species for comparison.

  • The most complete catalogue of eucalypt information in one source, including descriptions, interrelationships, synonymy, etymology, uses and distribution.

  • Over 2000 high quality colour images.

  • Data compiled and collated by one of Australia's leading eucalypt research groups.

  • Based on the world's largest and most comprehensive eucalypt collection from the Australian National Herbarium.

  • Price: $ A -  to be decided.

  • ISBN: 0 643 06046 4

EUCLID (revised edition) Order Form

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Updated Monday, 20/12/1999 09:53:18 EST by John Connors 
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