Pycnanthemum
''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. 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 (''Pycnanthemum californicum, P. californicum'') occurs in California and Oregon. ''Pycnanthemum'' is derived from Greek. The Greek word "pyknos" has the meaning of "dense", "tight", or "close-packed". It was combined with "anthos" meaning flower to give the genus name. ''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. Relationships wi ...
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