Hypericum erythreae

Hypericum erythreae, the Georgia St. John's-wort, sparse-leaved St. John's-wort, or grit St. Johnswort, is a species of flowering plant in the St. John's wort family, Hypericaceae.[1][2][3] It is native to the southeastern United States in seepage bogs and roadside ditches.[3] Its name grit St. Johnswort comes from its limited distribution, within the Altamaha Grit region of the Georgia coastal plain.[3]

Hypericum erythreae
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Hypericaceae
Genus: Hypericum
Section: H. sect. Trigynobrathys
Subsection: H. subsect. Connatum
Species:
H. erythreae
Binomial name
Hypericum erythreae
(Spach) Steud.
Synonyms[1]
  • Brathys erythreae Spach
  • Hypericum acutifolium Elliott
  • Hypericum denticulatum var. acutifolium (Elliott) S.F.Blake
  • Hypericum denticulatum subsp. acutifolium (Elliott) N.Robson
  • Hypericum virgatum var. acutifolium (Elliott) J.M.Coult.

According to "Hypericum Online", it is found from Maryland to southern Illinois, south to Florida and Louisiana,[4] though this may be in error, as many other sources list it as occurring only in Georgia and South Carolina.[1][2][3][5] Kew's Plants of the World Online notes that it may be extinct in South Carolina.[1]

Georgia St. John's wort was first formally described as Brathys erythraeae in 1836 by Édouard Spach. In 1840, Ernst Gottlieb von Steudel moved it to the genus Hypericum.[6][5]

References
  1. "Hypericum erythreae (Spach) Steud". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 14 January 2019.
  2. "Hypericum erythreae". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 14 January 2019.
  3. Weakley, Alan S. (2018), Flora of the Southern and Mid-Atlantic States, working draft of 20 August 2018, University of North Carolina Herbarium, North Carolina Botanical Garden, University of North Carolina at Chapel Hill
  4. "Hypericum erythreae Descriptions". hypericum.myspecies.info. Retrieved 14 January 2019.
  5. Robson, Norman K. B. (2015). "Hypericum erythreae". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 6. New York and Oxford. Retrieved 14 January 2019 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  6. "Hypericum erythreae (Spach) Steud". ipni.org. International Plant Names Index. Retrieved 14 January 2019.


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