Pycnanthemum

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Mountain mints
Pycnanthemum muticum heds and bracts 001.JPG
Short-toothed mountain mint ( Pycnanthemum muticum )
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Subfamily: Nepetoideae
Tribe: Mentheae
Genus: Pycnanthemum
Michx.
Synonyms [1]
  • Furera Adans.
  • Brachystemum Michx.
  • Koellia Moench
  • Tullia Leavenw.
  • Pycnanthes Raf.

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. [1] [2] [3] The center of diversity for the genus is North Carolina with 13 of the 20 species having been collected therein. Nineteen of the 20 species of Pycnanthemum occur in the Eastern US and Canada, and one disjunct species ( P. californicum ) occurs in California and Oregon.

Contents

Pycnanthemum is derived from Greek. The Greek word "pyknos" has the meaning of "dense", "tight", or "close-packed". [4] [5] It was combined with "anthos" meaning flower to give the genus name. [6]

Pycnanthemum belongs to the true mint subtribe (Menthinae), [7] and it has been shown to be closely related to the Monarda , Blephilia , and the scrub mints of the Southeastern United States. [8] Relationships within the genus remain unresolved. A complicated history of polyploidization paired with cryptic morphologies makes this a challenging group for systematists. [9]

Species

Footnotes

  1. 1 2 "Pycnanthemum". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. "Pycnanthemum". County-level distribution maps from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2013.
  3. Chambers, Henrietta L. (1961-01-01). "Chromosome numbers and breeding systems in Pycnanthemum (Labiatae)". Brittonia. 13 (1): 116–128. doi:10.2307/2805290. ISSN   1938-436X. JSTOR   2805290. S2CID   1465521.
  4. Henderson, I.F.; Henderson, W.D.; Kenneth, J.H. (1939). A Dictionary of Scientific Terms (3rd ed.). Edinburgh, United Kingdom: Oliver and Boyd. p. 292. Retrieved 26 January 2024.
  5. Ingram, David S. (1999). Plant Disease : A Natural History. London: HarperCollins. p. 262. ISBN   978-0-00-220074-5 . Retrieved 26 January 2024.
  6. "Pycnanthemum virginianum". Missouri Botanical Garden Plant Finder. Missouri Botanical Garden. Retrieved 26 January 2024.
  7. Ryding, Olof (2009-06-01). "Pericarp structure in Monarda (Lamiaceae)". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 127 (4): 453–458. doi:10.1127/0006-8152/2009/0127-0453. ISSN   0006-8152.
  8. Edwards, Christine E.; Soltis, Douglas E.; Soltis, Pamela S. (2006-01-01). "Molecular Phylogeny of Conradina and Other Scrub Mints (Lamiaceae) from the Southeastern USA: Evidence for Hybridization in Pleistocene Refugia?". Systematic Botany. 31 (1): 193–207. doi:10.1600/036364406775971688. ISSN   0363-6445. S2CID   86234822.
  9. Chambers, Henrietta L.; Chambers, Kenton L. (January 1971). "Artificial and Natural Hybrids in Pycnanthemum (Labiatae)". Brittonia. 23 (1): 71. doi:10.2307/2805843. ISSN   0007-196X. JSTOR   2805843. S2CID   11747998.

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References