Rubus flagellaris
... that the endangered butterfly Karner blue prefers the perennial subshrub Rubus flagellaris as a source of nectar?
... that the endangered butterfly <a href="./Karner_blue" id="mwDGo" rel="mw:WikiLink" title="Karner blue">Karner blue</a> prefers the perennial subshrub <i id="mwDGs"><b id="mwDGw"><a href="./Rubus_flagellaris" id="mwDG0" rel="mw:WikiLink" title="Rubus flagellaris">Rubus flagellaris</a></b></i> as a source of <a href="./Nectar" id="mwDG4" rel="mw:WikiLink" title="Nectar">nectar</a>?