– Virginia mountainmint – Quebec, Ontario, eastern + central US Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks.– whorled mountainmint – Quebec, Ontario, eastern + central US Pycnanthemum verticillatum (Michx.) Pers.– Torrey's mountainmint – eastern + east-central US non Walter) – Quebec, Ontario, eastern + central US – little-leaved mountainmint, slender-leaved mountainmint (= P. – awned mountainmint – southeastern + mid-Atlantic US Pycnanthemum pycnanthemoides (Leavenw.) Fernald – southern mountainmint – southeastern US, Ohio Valley.pilosum) – hairy mountainmint, whorled mountainmint – Coastal Plain mountainmint – southeastern US – short-toothed mountainmint – much of eastern US from east Texas to southern Maine † Pycnanthemum monotrichum Fernald – Virginia but extinct.– Loomis' mountainmint – southeastern US, Ohio Valley – hoary mountainmint, hoary basil, wild basil – Ontario, most of US east of the Mississippi River Pycnanthemum floridanum E.Grant & Epling – Florida mountainmint – Florida, southern Georgia.Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb.Pycnanthemum curvipes (Greene) E.Grant & Epling – southeastern US.& A.Gray – mid-Atlantic States, Tennessee, Indiana Pycnanthemum beadlei (Small) Fernald – North Carolina, South Carolina, Virginia, eastern Tennessee, northern Georgia.& A.Gray – white-leaved mountainmint – south-central US A complicated history of polyploidization paired with cryptic morphologies makes this a challenging group for systematists. Relationships within the genus remain unresolved. Pycnanthemum belongs to the true mint subtribe (Menthinae), and it has been shown to be closely related to the Monarda, Blephilia, and the scrub mints of the Southeastern United States. californicum) occurs in California and Oregon. Nineteen of the 20 species of Pycnanthemum occur in the Eastern US and Canada, and one disjunct species ( P. The center of diversity for the genus is North Carolina with 13 of the 20 species having been collected therein. All species of Pycnanthemum are native to the United States and Canada. Species in this genus are often referred to as "mountain mints" and they often have a minty or thyme-like aroma when crushed. Pycnanthemum is a genus of herbaceous plants in the mint family (Lamiaceae). Short-toothed mountain mint ( Pycnanthemum muticum)
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