Pycnanthemum is a genus of herbaceous plants in the mint family (Lamiaceae). Species in this genus are often referred to as "mountain mints" and they often have a minty or thyme-like aroma when crushed. All species of Pycnanthemum are native to the United States and Canada.
Pycnanthemum is derived from Greek. The Greek word "pyknos" has the meaning of "dense", "tight", or "close-packed".
Pycnanthemum belongs to the true mint subtribe (Menthinae),
Species
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Pycnanthemum albescens – white-leaved mountainmint – south-central US
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Pycnanthemum beadlei – North Carolina, South Carolina, Virginia, eastern Tennessee, northern Georgia
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Pycnanthemum californicum Torr. ex Durand – Sierra mint – California
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Pycnanthemum clinopodioides Torr. & A.Gray – mid-Atlantic States, Tennessee, Indiana
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Pycnanthemum curvipes – southeastern US
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Pycnanthemum flexuosum – southeastern US
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Pycnanthemum floridanum – Florida mountainmint – Florida, southern Georgia
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Pycnanthemum incanum – hoary mountainmint, hoary basil, wild basil – Ontario, most of US east of the Mississippi River
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Pycnanthemum loomisii – Loomis' mountainmint – southeastern US, Ohio Valley
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† Pycnanthemum monotrichum Fernald – Virginia but extinct
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Pycnanthemum montanum – southern Appalachians
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Pycnanthemum muticum – short-toothed mountainmint – much of eastern US from east Texas to southern Maine
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Pycnanthemum nudum Nutt. – Coastal Plain mountainmint – southeastern US
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Pycnanthemum pilosum ( = P. verticillatum var. pilosum) – hairy mountainmint, whorled mountainmint
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Pycnanthemum pycnanthemoides – southern mountainmint – southeastern US, Ohio Valley
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Pycnanthemum setosum – awned mountainmint – southeastern + mid-Atlantic US
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Pycnanthemum tenuifolium – little-leaved mountainmint, slender-leaved mountainmint (= P. flexuosum ) – Quebec, Ontario, eastern + central US
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Pycnanthemum torreyi – Torrey's mountainmint – eastern + east-central US
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Pycnanthemum verticillatum – whorled mountainmint – Quebec, Ontario, eastern + central US
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Pycnanthemum virginianum – Virginia mountainmint – Quebec, Ontario, eastern + central US
Footnotes
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(2007): Germplasm Resources Information Network – Pycnanthemum. Version of 2007-OCT-05. Retrieved 2011-FEB-18.
External links
