Species of flowering plant in the St John's wort family Hypericaceae
Hypericum tenuifolium |
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Scientific classification |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Hypericaceae |
Genus: | Hypericum |
Section: | H. sect. Myriandra |
Subsection: | H. subsect. Centrosperma |
Species: | H. tenuifolium |
Binomial name |
Hypericum tenuifolium
Pursh[1] |
Synonyms[2] |
- Hypericum coris Walter
- Hypericum fasciculatum var. laxifolium Choisy
- Hypericum galioides var. reductum Svenson
- Hypericum reductum (Svenson) P.B.Adams
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Hypericum tenuifolium, known as Atlantic St. John's-wort[3] and sandhill St. John's-wort,[4] is a species of flowering plant in the St. John's wort family, Hypericaceae. It is native to the Southeastern United States.[5]
Description
Atlantic St. John's-wort is a small, spreading shrub, growing 10–50 cm (3.9–19.7 in) tall and forming mats.[5][6] The leaves are very narrow, hence its name tenuifolium (from Latin tenuis 'thin' and folium 'leaf'), and are only 0.4–0.8 mm (0.016–0.031 in) broad and 4–11 mm (1⁄8–3⁄8 in) long, with rounded tips and revolute margins. The flowerheads are narrowly cylindric, producing 1-7 flowers. Each flower is 10–14 mm (3⁄8–1⁄2 in) broad with 5 sepals, 5 bright yellow petals, and 50-90 stamens. The ovaries are three-parted, forming cylindric capsule fruits. It flowers in the summer, typically June through September, but sometimes as late as December.[4]
Distribution and habitat
Hypericum tenuifolium occurs in the Atlantic coastal plain in the southeastern United States, in Alabama, Florida, Georgia, North Carolina, and South Carolina.[5] Its habitat includes dry, open, sandy areas such as pine flatwoods, pine savannas, and sandhills.[5][4]
References
- ^ "Hypericum tenuifolium Pursh". ipni.org. International Plant Names Index. Retrieved 2018-10-13.
- ^ "Hypericum tenuifolium Pursh". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 2018-10-13.
- ^ USDA, NRCS (n.d.). "Hypericum tenuifolium". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2018-10-13.
- ^ a b c 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
- ^ a b c d Robson, Norman K. B. (2015). "Hypericum tenuifolium". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 6. New York and Oxford: Oxford University Press. Retrieved 2018-10-13 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ "Hypericum tenuifolium". hypericum.myspecies.info. Retrieved 2018-10-13.
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subg. Brathys |
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Brathys | Brathys | - H. aciculare
- H. andinum
- H. baccharoides
- H. bolivaricum
- H. bryoides
- H. caracasanum
- H. cardonae
- H. cassiopiforme
- H. costaricense
- H. decandrum
- H. harlingii
- H. horizontale
- H. jaramilloi
- H. juniperinum
- H. lancioides
- H. llanganaticum
- H. magdalenicum
- H. magniflorum
- H. marahuacanum
- H. mexicanum
- H. millefolium
- H. parallelum
- H. pimeleoides
- H. prietoi
- H. prostratum
- H. pseudobrathys
- H. pycnophyllum
- H. recurvum
- H. ruscoides
- H. selaginella
- H. sprucei
- H. strictum
- H. struthiolifolium
- H. stuebelii
- H. tetrastichum
- H. valleanum
- H. wurdackii
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Phellotes | |
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Spachium | - H. arbuscula
- H. beamanii
- H. chamaemyrtus
- H. cymobrathys
- H. dichotomum
- H. diosmoides
- H. drummondii
- H. eastwoodianum
- H. fuertesii
- H. galinum
- H. gentianoides
- H. gnidioides
- H. peninsulare
- H. rubritinctum
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Styphelioides | |
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Elodea | |
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Myriandra | Ascyrum | |
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Brathydium | |
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Centrosperma | |
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Pseudobrathydium | |
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Suturosperma | |
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Thornea | |
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Trigynobrathys | Connatum | - H. brasiliense
- H. caespitosum
- H. campestre
- H. caprifoliatum
- H. carinatum
- H. cavernicola
- H. connatum
- H. cordatum
- H. cumulicola
- H. gramineum
- H. harperi
- H. legrandii
- H. linoides
- H. lorentzianum
- H. majus
- H. microlicioides
- H. myrianthum
- H. polyanthemum
- H. rigidum
- H. salvadorense
- H. setosum
- H. silenoides
- H. teretiusculum
- H. ternum
- H. virgatum
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Knifa | |
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Taxon identifiers |
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Hypericum tenuifolium | |
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