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Datenblatt bei Euro+Med PlantBase. mit Daten aus Rafaël Govaerts, 2003: World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Rafaël Govaerts, 2003: World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. Stachys. In: POWO = Plants of the World Online von Board of Trustees of the Royal Botanic Gardens, Kew: Kew Science,abgerufen am 25.April 2020.