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Cataract bog
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<h2 id="typical-species">Typical species</h2> <p>The rushing water carves out small depressions where soil accumulates, forming micro-islands that play host to plants that thrive with low levels of nutrients and shallow root structures. Typical species include <a href="/facts/Sphagnum_moss/IawBHtmW">Sphagnum moss</a>; carnivorous plants such as round-leaf sundew (<i><a href="/facts/Drosera_rotundifolia/b0hfXCaw">Drosera rotundifolia</a></i>), pitcher plants (<i><a href="/facts/Sarracenia_purpurea/sSpMUwX8">Sarracenia purpurea</a></i> and <i><a href="/facts/Sarracenia_jonesii/lKPoWY1l">S. jonesii</a></i>), and horned bladderwort (<i><a href="/facts/Utricularia_cornuta/YRIo30nv">Utricularia cornuta</a></i>); several orchid species such as common grass pink (<i><a href="/facts/Calopogon_tuberosus/I1XxMtr3">Calopogon tuberosus</a></i>), small green wood-orchid (<i><a href="/facts/Platanthera_clavellata/DBfpKNCS">Platanthera clavellata</a></i>), rose pogonia (<i><a href="/facts/Pogonia_ophioglossoides/yETJ9nYU">Pogonia ophioglossoides</a></i>), and nodding ladies'-tresses (<i><a href="/facts/Spiranthes_cernua/d5ksKgNU">Spiranthes cernua</a></i>). Other plants found in cataract bogs are limeseep grass-of-Parnassus (<i><a href="/facts/Parnassia/Pjed885B">Parnassia</a> grandifolia</i>), Indian paint brush (<i><a href="/facts/Castilleja_coccinea/c1AmIYy9">Castilleja coccinea</a></i>), stiff cowbane (<i><a href="/facts/Oxypolis_rigidior/QaEhHkvG">Oxypolis rigidior</a></i>), Appalachian bluet (<i><a href="/facts/Houstonia_serpyllifolia/3MuwCUN6">Houstonia serpyllifolia</a></i>) and northern sundrops (<i><a href="/facts/Oenothera_tetragona/Yw8dGhkm">Oenothera tetragona</a></i>).<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p><p>The plant communities are fragile because of their tenuous attachment to thin soil above the rock substrate. During prolonged drought, the stream may dry up and the edges of the micro-islands curl up. Heavy rainfall can then wash away the micro-islands, so a cataract bog is in a continual state of change and renewal.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p> <h2 id="location">Location</h2> <p>Cataract bogs are found only in the southern <a href="/facts/Appalachian_Mountains/f7X1GBDE">Appalachian Mountains</a> of the <a href="/facts/United_States/P0sCdLe5">United States</a>, at elevations of between 1,200 and 2,400 feet (370 and 730 m). They are restricted to the <a href="/facts/Blue_Ridge_Escarpment/pagAHWBG">Blue Ridge Escarpment</a> region of <a href="/facts/South_Carolina/lQQX84IS">South Carolina</a> and a small area of <a href="/facts/North_Carolina/VhKNTULI">North Carolina</a>, a region with exceptionally high rainfall.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>McMillan, Patrick. "Mountain Bogs on the Verge of Vanishing". Expeditions with Patrick McMillan. Archived from the original on 29 July 2011. Retrieved 20 April 2012. <a href="https://web.archive.org/web/20110729051109/http://www.myoutdoortv.com/wildlife/expeditions-with-patrick-mcmillan" target="_blank">https://web.archive.org/web/20110729051109/http://www.myoutdoortv.com/wildlife/expeditions-with-patrick-mcmillan</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Porcher, Richard Dwight (2001). A Guide to the Wildflowers of South Carolina. Columbia, South Carolina: University of South Carolina Press. p. 71. ISBN 1-57003-438-9. <a href="1-57003-438-9" target="_blank">1-57003-438-9</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Spira, Timothy P. (2011). Wildflowers & Plant Communities of the Southern Appalachian Mountains & Piedmont. Chapel Hill, North Carolina: University of North Carolina Press. pp. 157–158. ISBN 978-0-8078-7172-0. <a href="978-0-8078-7172-0" target="_blank">978-0-8078-7172-0</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Porcher, Richard Dwight (2001). A Guide to the Wildflowers of South Carolina. Columbia, South Carolina: University of South Carolina Press. p. 71. ISBN 1-57003-438-9. <a href="1-57003-438-9" target="_blank">1-57003-438-9</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Spira, Timothy P. (2011). Wildflowers & Plant Communities of the Southern Appalachian Mountains & Piedmont. Chapel Hill, North Carolina: University of North Carolina Press. pp. 157–158. ISBN 978-0-8078-7172-0. <a href="978-0-8078-7172-0" target="_blank">978-0-8078-7172-0</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>McMillan, Patrick. "Mountain Bogs on the Verge of Vanishing". Expeditions with Patrick McMillan. Archived from the original on 29 July 2011. Retrieved 20 April 2012. <a href="https://web.archive.org/web/20110729051109/http://www.myoutdoortv.com/wildlife/expeditions-with-patrick-mcmillan" target="_blank">https://web.archive.org/web/20110729051109/http://www.myoutdoortv.com/wildlife/expeditions-with-patrick-mcmillan</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> </ol>