As a public health precaution due to COVID-19, all Smithsonian museums are temporarily closed. We are not announcing a reopening date at this time and will provide updates on our websites and social media.
Khan, Nancy R., Block, Timothy A., and Rhoads, Ann F. 2008. "Vascular flora and community assemblages of Evansburg State Park, Montgomery County, Pennsylvania." Journal of the Torrey Botanical Society 135 (3):438–458. https://doi.org/10.3159/07-RA-021.1