"Tree to 35 m tall. Forming a lignotuber. Ironbark throughout, hard or soft, sometimes flaky, grey, black, grey-brown; oil glands sometimes present in pith of branchlets. " (Euclid, 4th Ed.)

Distinct from the subsp. fibrosa due to its grey-green to glaucous leaves (bluish crown). Occasionally requested for revegetation work. Once again the bark is often softer or fibrous when compared with other ironbarks. For a time the subspecies name was changed to nubila, however it has now reverted to nubilis as it was originally named by Maiden and Blakely.

EUCLID Eucalypts of Australia Edition 4 (2015, internet based, hosted by the Atlas of Living Australia). Date accessed: Oct13, 2019.

http://keyserver.lucidcentral.org:8080/euclid/data/02050e02-0108-490e-8900-0e0601070d00/media/Html/index.htm

http://keyserver.lucidcentral.org:8080/euclid/data/02050e02-0108-490e-8900-0e0601070d00/media/Html/Eucalyptus_fibrosa_subsp._nubilis.htm Brooker M.I.H., Kleinig D.A. (2004) ‘Field guide to eucalypts. Vol. 3. 2nd edn. (Bloomings Books: Melbourne)