Acetosa sagittata
... that southern African vine Acetosa sagittata is a weed in Australia and New Zealand, and may smother vegetation it grows upon?
... that southern African <a href="./Vine" id="mwFJs" rel="mw:WikiLink" title="Vine">vine</a> <i id="mwFJw"><b id="mwFJ0"><a class="mw-redirect" href="./Acetosa_sagittata" id="mwFJ4" rel="mw:WikiLink" title="Acetosa sagittata">Acetosa sagittata</a></b></i> is a <a href="./Weed" id="mwFJ8" rel="mw:WikiLink" title="Weed">weed</a> in <a href="./Australia" id="mwFKA" rel="mw:WikiLink" title="Australia">Australia</a> and <a href="./New_Zealand" id="mwFKE" rel="mw:WikiLink" title="New Zealand">New Zealand</a>, and may smother vegetation it grows upon?