Biology:Hypericum gymnanthum
| Hypericum gymnanthum | |
|---|---|
| |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Hypericaceae |
| Genus: | Hypericum |
| Section: | H. sect. Trigynobrathys |
| Subsection: | H. subsect. Knifa |
| Species: | H. gymnanthum
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| Binomial name | |
| Hypericum gymnanthum Engelm. & Gray[1]
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| Synonyms[1] | |
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Hypericum gymnanthum, the small-flowered St. John's wort[2] or clasping leaf St. John's wort,[3] is a species of flowering plant in the St. John's wort family Hypericaceae. It was first formally described in 1845.[4]
Description
H. gymnanthum ranges in height from 0.3 to 1 meters (approximately 1 to 3 feet) in height. Each yellow flower has five petals, each being 3 to 6 millimeters long.[5][6] Its lower leaves are significantly smaller than its upper leaves, which are 1.5 centimeters long and 1 centimeter wide.[6]
Distribution and habitat
This species' range encompasses the eastern United States, from Florida to New York, and it also occurs in Guatemala.[7][8] It has been introduced to Poland.[7]
It is commonly found in wet habitats such as sinkhole ponds, wet pine flatwoods, bogs, swales, and pine savannas.[9][10] The United States Department of Agriculture classifies H. gymnanthum as a facultative wetland species.[8]
References
- ↑ 1.0 1.1 "Hypericum gymnanthum Engelm. & Gray". Royal Botanical Gardens Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:433475-1.
- ↑ Robson, Norman K. B. (2015), "Hypericum gymnanthum", in Flora of North America Editorial Committee, Flora of North America North of Mexico (FNA), 6, New York and Oxford, http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242416678, retrieved 20 December 2018
- ↑ "Hypericum gymnanthum Species Page". APA: Alabama Plant Atlas. http://floraofalabama.org/Plant.aspx?id=1563.
- ↑ "Hypericum gymnanthum Engelm. & Gray". International Plant Names Index. http://beta.ipni.org/n/433475-1.
- ↑ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". https://www.wildflower.org/plants/result.php?id_plant=HYGY.
- ↑ 6.0 6.1 Godfrey, Robert K. (1981). Aquatic and Wetland Plants of Southeastern United States: Dicotyledons. Jean W. Wooten. Athens: University of Georgia Press. ISBN 978-0-8203-0532-5.
- ↑ 7.0 7.1 "Hypericum gymnanthum Descriptions". http://hypericum.myspecies.info/taxonomy/term/1128/descriptions.
- ↑ 8.0 8.1 "USDA Plants Database". https://plants.usda.gov/plant-profile/HYGY.
- ↑ Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
- ↑ "NatureServe Explorer 2.0". https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.150315/Hypericum_gymnanthum.
Wikidata ☰ Q17812257 entry
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