PROFILPELAJAR.COM

Ironbark is a common name of a number of species in three taxonomic groups within the genus Eucalyptus that have dark, deeply furrowed bark.^[1]

Instead of being shed annually as in many of the other species of Eucalyptus, the dead bark accumulates on the trees, forming the fissures. It becomes rough after drying out and becomes impregnated with kino (red gum), a dark red tree sap exuded by the tree.^[2] The tree is so named for the apparent resemblance of its bark to iron slag. The bark is resistant to fire and heat and protects the living tissue within the trunk and branches from fire. In cases of extreme fire, where leaves and shoots are removed, the protective bark aids in protecting epicormic buds which allow the tree to reshoot.^[3]

Being a very dense, hard wood, a length of ironbark is often used as a bug shoe on the bottom of a ship's skeg to protect it from shipworms.^[4] Ironbark was widely used in the piles of 19th and early 20th century bridges and wharves in New Zealand.^[5] It was widely used for railway sleepers in eastern Australia in the 19th and 20th centuries due to its durability; while other timber sleepers had to be replaced every 7-12 years, ironbark could last 30 years.^[6]^[7]

Examples of ironbark species

Eucalyptus ancophila L.A.S.Johnston & K.D.Hill
Eucalyptus atrata L.A.S.Johnston & K.D.Hill Herberton ironbark, blue-leaved ironbark
Eucalyptus beaniana L.A.S.Johnson & K.D.Hill Bean's ironbark
Eucalyptus caleyi Maiden Caley's ironbark, drooping ironbark
Eucalyptus corynodes A.R. Bean & Brooker
Eucalyptus crebra F.Muell. narrow-leaved ironbark or narrow-leaved red ironbark
Eucalyptus cullenii Cambage Cullen's ironbark
Eucalyptus decolor A.R.Bean & Brooker
Eucalyptus decorticans (F.M.Bailey) Maiden gum-topped ironbark
Eucalyptus dura L.A.S. Johnson & K.D.Hill
Eucalyptus exilipes Brooker & A.R.Bean fine-leaved ironbark
Eucalyptus farinosa K.D.Hill
Eucalyptus fibrosa F. Muell. broad-leaved (red) ironbark, blue-leaved ironbark
Eucalyptus fusiformis Boland & Kleinig grey ironbark
Eucalyptus granitica L.A.S.Johnson & K.D.Hill granite ironbark
Eucalyptus indurata Brooker & Hopper ironbark
Eucalyptus jensenii Maiden Wandi ironbark
Eucalyptus melanoleuca S.T.Blake Yarraman ironbark or nanango ironbark
Eucalyptus melanophloia F.Muell. silver-leaved ironbark
Eucalyptus ophitica L.A.S.Johnson & K.D.Hill serpentine ironbark
Eucalyptus panda S.T. Blake tumbledown ironbark, Yetman ironbark
Eucalyptus paniculata Sm. grey ironbark
Eucalyptus paedoglauca L.A.S.Johnson & Blaxell Mount Stuart ironbark
Eucalyptus placita L.A.S.Johnson & K.D.Hill grey ironbark
Eucalyptus quadricostata Brooker square-fruited ironbark
Eucalyptus rhombica A.R.Bean & Brooker
Eucalyptus scopulorum K.D.Hill
Eucalyptus shirleyi Maiden Shirleys's silver leaved ironbark
Eucalyptus sicilifolia L.A.S.Johnson & K.D.Hill
Eucalyptus siderophloia Benth. northern grey ironbark
Eucalyptus sideroxylon A.Cunn. ex Woolls mugga ironbark
Eucalyptus staigeriana F.Muell. ex Bailey lemon-scented ironbark
Eucalyptus suffulgens L.A.S.Johnson & K.D.Hill
Eucalyptus taurina A.R.Bean & Brooker Helidon ironbark
Eucalyptus tricarpa (L.A.S.Johnson) L.A.S.Johnson & K.D.Hill red ironbark
Eucalyptus virens Brooker & A.R.Bean shiny-leaved ironbark
Eucalyptus whitei Maiden & Blakely White's ironbark

References

^ Ian Brooker, "Botany of the Eucalypts" in J.J.W. Coppen, Eucalyptus, 3-35, Boca Raton, Florida: CRC Press, 2002 ISBN 0-415-27879-1, p. 31
^ CSIRO Forest Products Newsletter 1946
^ J.B. Reid & B.M. Potts, "Eucalypt Biology" in Reid et al. (eds.), Vegetation of Tasmania, Australian Government, 2005, pp. 198-223
^ "AFSC Historical Corner: Scoter, the Agency's Bristol Bay Boat". NOAA. Retrieved 6 April 2018.
^ "Report 05-116 collapse of Bridge 256 over Nuhaka River Palmerston North-Gisborne Line" (PDF). Transport Accident Investigation Commission. 6 May 2005.
^ Report on the Construction and Progress of the Railways of New South Wales from 1866-1871, Inclusive. New South Wales. Dept. of Railways and Tramways. 1876. p. 52.
^ Morris Lake (2019). Australian Forest Woods: Characteristics, Uses and Identification. CSIRO. p. 96. ISBN 9781486307791.

External links

"Ironbark Tree" . New International Encyclopedia. 1905.

This page is an index of articles on plant species (or higher taxonomic groups) with the same common name (vernacular name).
If an internal link led you here, you may wish to edit the linking article so that it links directly to the intended article.

This rosid tree article is a stub. You can help Wikipedia by expanding it.