Hypericum gymnanthum

Species of flowering plant in the St John's wort family From Wikipedia, the free encyclopedia

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]

Quick facts Scientific classification, Binomial name ...
Hypericum gymnanthum
Scientific classification Edit this classification
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
Binomial name
Hypericum gymnanthum
Engelm. & Gray[1]
Synonyms[1]
  • Hypericum canadense var. cardiophyllum R.Keller
  • Hypericum mutilum var. gymnanthum (Engelm. & A.Gray) A.Gray
  • Sarothra gymnantha (Engelm. & A.Gray) Y.Kimura
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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

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