Orange Agoseris. Drawing.
USDA-NRCS PLANTS Database / USDA NRCS. <i>Wetland flora: Field office illustrated guide to plant species.</i> USDA Natural Resources Conservation Service.
<a rel="nofollow" class="external text" href="https://plants.usda.gov/java/largeImage?imageID=agau2_003_avd.tif">USDA PLANTS Database</a>