<p>Genus <i> Lagunaria</i> comprises a single species in Malvaceae family. Endemic to Norfolk and Lord Howe Islands, off eastern Australia, and a small stretch od coastal Queensland.
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<pre>Indeed flowers look like Hibiscus, but small, while the  tree is much bigger. 
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These flowers are on tree more than10m hight,  photographed from a long distance  (front yard tree, Brisbane)
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/62938898@N00">Tatiana Gerus</a> from Brisbane, Australia
CC BY 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/tgerus/5228925340/">Lagunaria patersonia - Norfolk Island Hibiscus</a>
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<ul><li>Uploaded by <a href="//commons.wikimedia.org/wiki/User:Uleli" title="User:Uleli">uleli</a></li></ul>