Lewton's polygala
... that the rare and endangered Lewton's polygala produces three kinds of flowers, including one that remains underground?
... that the rare and endangered <b id="mwCCw"><a href="./Polygala_lewtonii" id="mwCC0" rel="mw:WikiLink" title="Polygala lewtonii">Lewton's polygala</a></b> <i id="mwCC4">(pictured)</i> produces three kinds of flowers, including one that remains underground?