All Species in Lycopus
- American Water Horehound (Lycopus americanus)
- Carolina Water Horehound (Lycopus cokeri)
- Clasping Water Horehound (Lycopus amplectens)
- Gypsywort (Lycopus europaeus)
- Lycopus alissoviae (Lycopus alissoviae)
- Lycopus americanus subsp. americanus (Lycopus americanus subsp. americanus)
- Lycopus angustifolius (Lycopus angustifolius)
- Lycopus australis (Lycopus australis)
- Lycopus cavaleriei (Lycopus cavaleriei)
- Lycopus charkeviczii (Lycopus charkeviczii)
- Lycopus exaltatus (Lycopus exaltatus)
- Lycopus glandulosus (Lycopus glandulosus)
- Lycopus hirtellus (Lycopus hirtellus)
- Lycopus kurilensis (Lycopus kurilensis)
- Lycopus lucidus (Lycopus lucidus)
- Lycopus lucidus var. hirtus (Lycopus lucidus var. hirtus)
- Lycopus lucidus var. lucidus (Lycopus lucidus var. lucidus)
- Lycopus lucidus var. maackianus (Lycopus lucidus var. maackianus)
- Lycopus sichotensis (Lycopus sichotensis)
- Lycopus × intermedius (Lycopus × intermedius)
- Northern Bugleweed (Lycopus uniflorus)
- Rough Bugleweed (Lycopus asper)
- St. Lawrence Waterhorehound (Lycopus americanus subsp. laurentianus)
- Taperleaf Water Horehound (Lycopus rubellus)
- Virginia Water Horehound (Lycopus virginicus)
- Waterhorehound (Lycopus × sherardii)