Acknowledgments

Special thanks are due to: (1) Misty Buchanan (NC Natural Heritage Program), Rob Evans (NC Plant Conservation Program), Laura Gadd (NC Natural Heritage Program), Lesley Starke (NC Plant Conservation Program), and Dale Suiter (US Fish & Wildlife Service), whose expertise greatly facilitated the locating and imaging of taxa, and (2) Robert Thornhill (North Carolina State University), for reviewing a previous version of the tool. Code for the dropbox shadow was provided by Robert Nyman (robertnyman.com).

In-kind support for this project was provided from the United States Fish & Wildlife Service. Additional support for staffing and facilities was provided through the NC Cooperative Extension Service, the NC Agricultural Research Service (62303), the College of Agriculture & Life Sciences Academic Programs (this project was originally conceived as an outgrowth of Dr. Krings' course: Rare Plants of North Carolina), and the Department of Plant Biology.