Horehound

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Marrubium peregrinum (horehound) is a species of herbaceous perennial plant, with height up to 60 cm, native to south-east Europe, the Balkans, and Asia Minor.

Synonyms

• Atirbesia bracteata Raf.
• Marrubium affine Host
• Marrubium angustifolium Moench
• Marrubium candidissimum L.
• Marrubium candidissimum Orsini ex Ten.
• Marrubium civice Klokov
• Marrubium creticum Mill.
• Marrubium creticum Roth
• Marrubium flexuosum Moench
• Marrubium odoratissimum Pourr. ex Steud.
• Marrubium pannonicum Rchb.
• Marrubium pauciflorum Wallr.
• Marrubium peregrinum var. creticum (Mill.) Nyman
• Marrubium pestalozzae auct.
• Marrubium praecox Janka
• Marrubium remotum Janka
• Marrubium rubrum Roth
• Marrubium setaceum Desr.
• Marrubium uncinatum Hornem.

References

• Carl Linnaeus, Species Plantarum 2, 1753, p. 582.
• The Plant List entry
• "Marrubium peregrinum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA).
• Encyclopedia of Life entry