All Species in Marrubium
- Horehound (Marrubium incanum)
- Horehound (Marrubium peregrinum)
- Horehound (Marrubium vulgare)
- Marrubium alyssoides (Marrubium alyssoides)
- Marrubium alysson (Marrubium alysson)
- Marrubium amasiensis (Marrubium amasiensis)
- Marrubium anisodon (Marrubium anisodon)
- Marrubium aschersonii (Marrubium aschersonii)
- Marrubium astracanicum (Marrubium astracanicum)
- Marrubium astracanicum subsp. astracanicum (Marrubium astracanicum subsp. astracanicum)
- Marrubium astracanicum subsp. macrodon (Marrubium astracanicum subsp. macrodon)
- Marrubium asumaniae (Marrubium asumaniae)
- Marrubium atlanticum (Marrubium atlanticum)
- Marrubium ayardii (Marrubium ayardii)
- Marrubium bourgaei (Marrubium bourgaei)
- Marrubium bourgaei subsp. bourgaei (Marrubium bourgaei subsp. bourgaei)
- Marrubium bourgaei subsp. caricum (Marrubium bourgaei subsp. caricum)
- Marrubium catariifolium (Marrubium catariifolium)
- Marrubium cephalanthum (Marrubium cephalanthum)
- Marrubium cephalanthum subsp. cephalanthum (Marrubium cephalanthum subsp. cephalanthum)
- Marrubium cephalanthum subsp. montanum (Marrubium cephalanthum subsp. montanum)
- Marrubium cordatum (Marrubium cordatum)
- Marrubium crassidens (Marrubium crassidens)
- Marrubium crassidens var. brevidens (Marrubium crassidens var. brevidens)
- Marrubium crassidens var. crassidens (Marrubium crassidens var. crassidens)
- Marrubium cuneatum (Marrubium cuneatum)
- Marrubium cylleneum (Marrubium cylleneum)
- Marrubium depauperatum (Marrubium depauperatum)
- Marrubium deserti (Marrubium deserti)
- Marrubium duabense (Marrubium duabense)
- Marrubium echinatum (Marrubium echinatum)
- Marrubium eriocephalum (Marrubium eriocephalum)
- Marrubium fontianum (Marrubium fontianum)
- Marrubium friwaldskyanum (Marrubium friwaldskyanum)
- Marrubium glechomifolium (Marrubium glechomifolium)
- Marrubium globosum (Marrubium globosum)
- Marrubium globosum subsp. globosum (Marrubium globosum subsp. globosum)
- Marrubium globosum subsp. libanoticum (Marrubium globosum subsp. libanoticum)
- Marrubium globosum subsp. micranthum (Marrubium globosum subsp. micranthum)
- Marrubium heterocladum (Marrubium heterocladum)
- Marrubium heterodon (Marrubium heterodon)
- Marrubium hierapolitanum (Marrubium hierapolitanum)
- Marrubium leonuroides (Marrubium leonuroides)
- Marrubium litardierei (Marrubium litardierei)
- Marrubium lutescens (Marrubium lutescens)
- Marrubium multibracteatum (Marrubium multibracteatum)
- Marrubium multibracteatum subsp. ayachicum (Marrubium multibracteatum subsp. ayachicum)
- Marrubium multibracteatum subsp. multibracteatum (Marrubium multibracteatum subsp. multibracteatum)
- Marrubium parviflorum (Marrubium parviflorum)
- Marrubium parviflorum subsp. oligodon (Marrubium parviflorum subsp. oligodon)
- Marrubium parviflorum subsp. parviflorum (Marrubium parviflorum subsp. parviflorum)
- Marrubium persicum (Marrubium persicum)
- Marrubium pestalozzae (Marrubium pestalozzae)
- Marrubium plumosum (Marrubium plumosum)
- Marrubium procerum (Marrubium procerum)
- Marrubium propinquum (Marrubium propinquum)
- Marrubium rotundifolium (Marrubium rotundifolium)
- Marrubium sivasense (Marrubium sivasense)
- Marrubium supinum (Marrubium supinum)
- Marrubium thessalum (Marrubium thessalum)
- Marrubium trachyticum (Marrubium trachyticum)
- Marrubium vanense (Marrubium vanense)
- Marrubium velutinum (Marrubium velutinum)
- Marrubium vulcanicum (Marrubium vulcanicum)
- Marrubium werneri (Marrubium werneri)
- Marrubium woronowii (Marrubium woronowii)
- Marrubium yildirimlii (Marrubium yildirimlii)
- Marrubium zeydanlii (Marrubium zeydanlii)
- Marrubium × bastetanum (Marrubium × bastetanum)
- Marrubium × humbertii (Marrubium × humbertii)
- Marrubium × paniculatum (Marrubium × paniculatum)