Ironbark

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]

This article is about species of trees in the genus Eucalyptus. For other uses, see Ironbark (disambiguation).
E. crebra bark

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]

Examples of ironbark species
gollark: Oh, this is part of an implementation of a blockchain for some reason? Interesting.
gollark: Oh, Jupyter, right. Still weird.
gollark: Is that Colab or something? Why are they using that for sharing documents?
gollark: I think you have lots of emotional attachment to cryptocurrency because you made money off it and something something tribalism.
gollark: Because modern silicon processes are *really* energy-intensive.

See also

References
  1. 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
  2. CSIRO Forest Products Newsletter 1946
  3. J.B. Reid & B.M. Potts, "Eucalypt Biology" in Reid et al. (eds.), Vegetation of Tasmania, Australian Government, 2005, pp. 198-223
  4. "AFSC Historical Corner: Scoter, the Agency's Bristol Bay Boat". NOAA. Retrieved 6 April 2018.CS1 maint: ref=harv (link)
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