Contains 7 accepted taxa overall.

Characteristics
Lycopus L.
WATERHOREHOUND
Classification
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LAMIALES
Lycopus
Citation
LYCOPUS Linnaeus, Sp. Pl. 21. 1753.
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TYPE: Lycopus europaeus Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 146. 1913.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Lycopus americanus American Bugleweed
Lycopus amplectens Clasping Water-horehound
Lycopus angustifolius Narrowleaf Bugleweed, Southern Bog Water-horehound
Lycopus cokeri Coker's Bugleweed, Carolina Bugleweed
Lycopus rubellus Stalked Bugleweed
Lycopus uniflorus Northern Bugleweed
Lycopus virginicus Virginia Bugleweed
Identification Key
1.  Calyx subeqal to shorter than the nutlets, the lobe apices obtuse to acute
1.  Calyx much longer than the nutlets, the lobe apices acuminate to subulate
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2.  Stem sharply 4-angled
2.  Stem subterete or with obtuse angles
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3.  Leaves sessile, the expanded blade adjacent to the stem, the blade base rounded, truncate, to subclasping
3.  Leaves more or less petiolate, the expanded blade distant from the stem, the blade base strongly narrowed and attenuate
Genus Synonyms
Synonym Full Citation Basionym Type
No synonyms found.