black gum
... that the black gum is threatened by global warming as it is largely restricted to frost hollows?
... that the <b id="mwEVY"><a href="./Eucalyptus_aggregata" id="mwEVc" rel="mw:WikiLink" title="Eucalyptus aggregata">black gum</a></b> is threatened by <a class="mw-redirect" href="./Global_warming" id="mwEVg" rel="mw:WikiLink" title="Global warming">global warming</a> as it is largely restricted to frost hollows?