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Hypericum ascyron
Species of flowering plant in the St John's wort family Hypericaceae From Wikipedia, the free encyclopedia
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Hypericum ascyron, the great St. Johnswort[2] or giant St. John's wort[3] is a flowering plant in the family Hypericaceae.
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Description
This large species of Hypericum grows to be 3–5 feet tall. It is perennial and its leaves are a deep green, elliptic, and grow up to five inches long.[4] Its flowers have five petals and it can have thirteen or more stamens.[5][6]
Taxonomy
Accepted infraspecifics include:[7]
- Hypericum ascyron subsp. ascyron
- Hypericum ascyron subsp. gebleri
- Hypericum ascyron subsp. pyramidatum
Distribution
It is found Asia and North America, in the latter primarily in the American Midwest, as well as parts of New England and Quebec.[8] It occurs in Russia, Mongolia, Korea, Taiwan, China, Vietnam, Canada, and the United States.[9]
References
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