<i>Astragalus penduliflorus</i> (<i>Phaca alpina</i>)
Anton Hartinger
1882
<i>Atlas der Alenflora</i>. <a rel="nofollow" class="external free" href="https://archive.org/details/atlasderalpenflo00hart">https://archive.org/details/atlasderalpenflo00hart</a>