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Helenium quadridentatum
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<h2 id="external-links">External links</h2> <ul><li> Media related to Helenium quadridentatum at Wikimedia Commons</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Flora of North America, Helenium quadridentatum Labillardière, 1792. Longdisk sneezeweed <a href="http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858" target="_blank">http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Biota of North America Program 2014 county distribution map <a href="http://bonap.net/MapGallery/County/Helenium%20quadridentatum.png" target="_blank">http://bonap.net/MapGallery/County/Helenium%20quadridentatum.png</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Flora of North America, Helenium quadridentatum Labillardière, 1792. Longdisk sneezeweed <a href="http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858" target="_blank">http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Balick, M. J., M. H. Nee & D.E. Atha. 2000. Checklist of the vascular plants of Belize. Memoirs of The New York Botanical Garden 85: i–ix, 1–246 <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100 <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Flora of North America, Helenium quadridentatum Labillardière, 1792. Longdisk sneezeweed <a href="http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858" target="_blank">http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066858</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Labillardière, Jacques Julien Houtou de. 1792. Actes de la Société d'Histoire Naturelle de Paris 1: pages 22-23 diagnosis in Latin, description + commentary + figure captions in French <a href="https://www.biodiversitylibrary.org/page/45494803#page/56/mode/1up" target="_blank">https://www.biodiversitylibrary.org/page/45494803#page/56/mode/1up</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Labillardière, Jacques Julien Houtou de. 1792. Actes de la Société d'Histoire Naturelle de Paris 1: plate IV (4) full-page line drawing of Helenium quadridentatum <a href="https://www.biodiversitylibrary.org/page/45494803#page/173/mode/1up" target="_blank">https://www.biodiversitylibrary.org/page/45494803#page/173/mode/1up</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> </ol>