Common name: myrtleleaf St. Johnswort; polebark St. Johnswort
|Photo by the Southeastern Flora Plant Database|
|Division:||Magnoliophyta - Flowering plants|
|Class:||Magnoliopsida - Dicots|
| Hypericum myrtifolium|
|Natural range of Hypericum myrtifolium from USDA NRCS Plants Database.|
H. myrtifolium is found mainly in Florida, but can also be found sparingly in southern Alabama, Gerogia, and Mississippi. 
H. myrtifolium is naturally found in fresh-water communities and marshes infrequently.  Other natural communities include sandhills and flatwoods.  More specifically, H. myrtifolium can be found in dry loamy sand in open pine woodlands, sand pine stands, moist loams of swales in pine woodland, and in shaded swamps. 
Associated species - Hypericum harperi 
Conservation and Management
Cultivation and restoration
References and notes
- USDA Plants Database URL: https://plants.usda.gov/core/profile?symbol=HYMY
- Carr, L. G. (1940). "Further notes on coastal floral elements in the bogs of Augusta County, Virginia." Rhodora 42(495): 86-93.
- Hilmon, J. B. (1964). "Plants of the Caloosa Experimental Range " U.S. Forest Service Research Paper SE-12
- Platt, W. J., Gregory W. Evans, and Mary M. Davis (1988). "Effects of Fires Season on Flowering of Forbs and Shurbs in Longleaf Pine Forests." Oecologia 76(3): 353-363.
- Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2018. Collectors: Loran C. Anderson, Wilson Baker, R. A. Norris, Robert K. Godfrey, R. Komarek, M. Davis, J. M. Kane, Cecil R. Slaughterm and R. Kral. States and counties: Florida: Leon, Wakulla, Duval, and Madison. Georgia: Thomas and Clinch.
- Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 22 MAY 2018