1) Asterid dicot genus 2) Genus marrubium 1) Horehound 
Marrubium (horehound or hoarhound) is a genus of flowering plants in the family Lamiaceae, native to temperate regions of Europe, North Africa, and Asia as far east as the Xinjiang region of western China. A few species are also naturalized in North and South America. The genus name Marrubium derives from the Hebrew marrob or bitter juice. The com...
• (n.) A genus of bitter aromatic plants, sometimes used in medicine; hoarhound.
Mar·ru'bi·um noun [ Latin ] (Botany) A genus of bitter aromatic plants, sometimes used in medicine; hoarhound. 
[n] - Old World aromatic herbs: horehound
genus Marrubium noun Old World aromatic herbs: horehound