<i>Agrimonia gryposepala</i> Wallr. (tall hairy agrimony)
USDA NRCS. <i>Wetland flora: Field office illustrated guide to plant species.</i> USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team, Fort Worth, TX.
Retrieved &amp; uploaded 2012-08-03 (original pub. date not provided)
<a rel="nofollow" class="external text" href="https://plants.usda.gov/java/profile?symbol=AGGR2">Natural Resources Conservation Service PLANTS Database: Agrimonia gryposepala Wallr. </a>