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Monarda punctata L. - Lamiaceae - spotted beebalm, dotted monarda, lemon mint, horse-mint, Punktierte Indianernessel
Annual to perenniel herb, up to 60cm tall, native to Northern America; stems square; toothed, leaves oblong, aromatic, toothed; Yellow, flowers two-lipped, yellow spotted with purple, in the upper leaf axils and terminal in stem-ringing clusters, each cluster subtended by a whorl of showy, pinkish, leafy bracts. „The toothed, aromatic, oblong leaves (to 3“) may be used in teas.„
http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e290
„It was historically used to treat upset stomachs, colds, diarrhea, neuralgia and kidney disease.“ https://en.wikipedia.org/wiki/Monarda_punctata
The essential oil showed thymol (75.2%), p-cymene (6.7%), limonene (5.4), and carvacrol (3.5%) as the major constituents. “… the essential oil and its constituents exhibited a broad spectrum and variable degree of antibacterial activity against different strains. Among the tested strains, Streptococcus pyogenes, Escherichia coli and Streptococcus pneumoniae were the most susceptible bacterial strain showing lowest MIC and MBC values. Methicillin-resistant Staphylococcus aureus was the most resistant bacterial strain to the essential oil treatment showing relatively higher MIC and MBC values.„
[Antibacterial activity and mechanism of action of Monarda punctata essential oil and its main components against common bacterial pathogens in respiratory tract., Li, H., Yang, T., Li, F.Y., Yao, Y., Sun, Z.M., International journal of clinical and experimental pathology, 7(11), 2014, 7389] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270556/
Botanical Register, vol.1 t.87 (1815) [S.Edwards]
http://plantgenera.org/species.php?id_species=677795