Marrubium thessalum SynonymySource: 2010: World Checklist of Selected Plant Families (2010), copyright © The Board of Trustees of the Royal Botanic Gardens, Kew.Marrubium thessalum Boiss. & Heldr. in Boissier, Diagn. Pl. Orient. ser. 2, 4: 50. 1859ContentDistribution Bibliography Distribution Al Gr Euro+Med: Albania nativeA; Greece nativeA Bibliography A. Kew World Checklist of Selected Plant Families