Williamson, Jeffrey G., Sydney Park Brown, and Tom Wichman. (1992) 2009. “Florida 4–H Horticulture Identification and Judging: Contest Rules and Glossary: 4HPSJ20/4H004, Rev. 8/2009”. EDIS 2016 (3). Gainesville, FL. https://doi.org/10.32473/edis-4h004-1992.