Lycopus

Contains 4 accepted taxa overall.

Characteristics
Lycopus L.
LAMIACEAE
WATERHOREHOUND
View USF Herbarium specimens of this family
Classification
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.
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Lycopus americanus AMERICAN WATERHOREHOUND Native OBL (NWPL) OBL (DEP)
Lycopus amplectens CLASPING WATERHOREHOUND Native OBL (NWPL) OBL (DEP)
Lycopus rubellus TAPERLEAF WATERHOREHOUND Native OBL (NWPL) OD (WAP) OBL (DEP)
Lycopus virginicus VIRGINIA WATERHOREHOUND Native OBL (NWPL) OBL (DEP)
Identification Key
1.  Calyx subeqal to shorter than the nutlets, the lobe apices obtuse to acute
L. virginicus
1.  Calyx much longer than the nutlets, the lobe apices acuminate to subulate
2
2.  Stem sharply 4-angled
L. americanus
2.  Stem subterete or with obtuse angles
3
3.  Leaves sessile, the expanded blade adjacent to the stem, the blade base rounded, truncate, to subclasping
L. amplectens
3.  Leaves more or less petiolate, the expanded blade distant from the stem, the blade base strongly narrowed and attenuate
L. rubellus
Genus Synonyms
Synonym Full Citation Basionym Type
Phytosalpinx Phytosalpinx Lunell, Amer. Midl. Naturalist 5: 2. 1917. TYPE: = Lycopus Linnaeus 1753.