Common name: Myrtle-leaf St. John's-wort; Polebark St. John's-wort
|Photo by the Southeastern Flora Plant Database|
|Division:||Magnoliophyta - Flowering plants|
|Class:||Magnoliopsida - Dicots|
|Natural range of Hypericum myrtifolium from USDA NRCS Plants Database.|
H. myrtifolium frequents pond-adjacent habitats, fresh-waterbodies. and the occasional marsh. Other natural communities include the sandhills and flatwoods. More specifically, H. myrtifolium can be found in dry loamy sands of open pine woodlands, moist loams of pine woodland swales, sand pine stands, and shaded swamps. It is considered an indicator species of the peninsula savannas in Florida.
Associated species include Hypericum harperi.
This species is commonly found in fire-dependent pineland habitats.
Conservation, cultivation, and restoration
As it is uncommon in its range and depends on endangered habitat types, Hypericum myrtifolium is listed as G4. It is also considered imperiled in Mississippi.
References and notes
- Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
- 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.
- Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
- 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.
- Carr, S. C., et al. (2010). "A Vegetation Classification of Fire-Dependent Pinelands of Florida." Castanea 75(2): 153-189.
- [] Lady Bird Johnson Wildflower Center. Accessed: May 28, 2019
- 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
- [] NatureServe Explorer. Accessed: May 28, 2019