Examples from the Web for ironbark
IRONBARK was the codename for just one source: Oleg Penkovsky.
Pressed, Carter replied that the agency had drawn on a number of sources, “including our IRONBARK sources.”
To the northward, it opens into fine gentle Ironbark slopes and ridges, which form the heads of the Isaacs.
On these hills grew the varieties of eucalypti known in the colony, such as ironbark, bluegum, and stringybark.
The narrow-leaved Ironbark had disappeared with the primitive rocks; the moment sandstone commenced, stringy-bark took its place.
The forest consists of ironbark and acacia; grass everywhere abundant.Journals of Australian Explorations|A C and F T Gregory
Then of a truth you will long for ironbark, or even homely oak.The Ancient Allan|H. Rider Haggard