Koellia virginiana (L.) Britton species synonym

Pycnanthemum pilosum var. leptodon Benth. variety synonym

Koellia verticillata (Michx.) Kuntze species synonym

Pycnanthemum hybr species accepted

Pycnanthemum virginianum var. virginianum variety synonym

Koellia pycnanthemoides (Leavenw.) Kuntze species synonym

Koellia mutica (Michx.) Britton ex Small & Vail species synonym

Thymus virginicus (L.) Willd. species synonym

Pycnanthemum virginianum B.D.Jacks., 1906 species doubtful

Pycnanthemum tullia Benth. species synonym

Pycnanthemum lanceolatum (Willd.) Pursh species synonym

Koellia virginiana (L.) Kuntze species synonym

Thymus virginicus L. species synonym

Monarda gracilis Pursh species synonym

Thymus lanceolatus (Willd.) Poir. species heterotypic synonym

Tullia pycnanthemoides Leavenw. species synonym

Nepeta virginica Willd. species heterotypic synonym

Pycnanthemum curvipes (Greene) E.Grant & Epling species accepted

Koellia multiflora Small species doubtful

Koellia curvipes Greene species synonym

Pycnanthemum californicum Torr. ex Durand species accepted

Pycnanthemum floridanum E.Grant & Epling species accepted

Pycnanthemum nudum Nutt. species accepted

Koellia nuda (Nutt.) Kuntze species synonym

Pycnanthemum tenuifolium Schrad. species accepted

Koellia hugeri Small species synonym

Koellia hyssopifolia (Benth.) Britton species synonym

Koellia flexuosa (Walter) MacMill. species synonym

Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb. species accepted

Pycnanthemum hyssopifolium Benth. species synonym

Pycnanthemum incanum (L.) Michx. species accepted

Pycnanthemum montanum Michx. species accepted

Koellia montana (Michx.) Kuntze species synonym

Pycnanthemum albescens Torr. & A.Gray species accepted

Koellia pauciflora Small species synonym

Koellia albescens (Torr. & A.Gray) Kuntze species synonym

Pycnanthemum clinopodopodes Torr. & A.Gray species synonym

Pycnanthemum monotrichum Fernald species accepted

Pycnanthemum pycnanthemoides (Leavenw.) Fernald species accepted

Pycnanthemum verticillatum (Michx.) Pers. species accepted

Pycnanthemum loomisii Nutt. species accepted

Pycnanthemum beadlei (Small) Fernald species accepted

Koellia beadlei Small species synonym

Pycnanthemum setosum Nutt. species accepted

Pycnanthemum umbratile Fernald species synonym

Pycnanthemum aristatum Michx. species synonym

Koellia aristata Kuntze species synonym

Pycnanthemum clinopodioides Torr. & A.Gray species accepted

Koellia clinopodioides (Torr. & A.Gray) Kuntze species synonym

Pycnanthemum muticum (Michx.) Pers. species accepted

Koellia mutica (Michx.) Kuntze species synonym

Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald species accepted

Koellia virginiana (L.) MacMill. species synonym

Monardella montana Benth. species synonym

Clinopodium incanum L. species heterotypic synonym

Pycnanthes saxatilis Raf. species doubtful

Pycnanthes parvifolia Raf. species doubtful

Pycnanthes ciliata Raf. species doubtful

Pycnanthemum virginicum Britton, Sterns & Poggenb., 1888 species accepted

Pycnanthemum virginianum var. verticillatum (Michx.) B.Boivin variety synonym

Pycnanthemum virginianum f. citriodora P.D.Sørensen & Matek. form synonym

Pycnanthemum torreyi Benth. species accepted

Pycnanthemum tenuifolium var. lawrencei F.Seym. variety synonym

Pycnanthemum rosmarinoides Raf. species doubtful

Pycnanthemum ovatum Nutt. ex Benth. species synonym

Pycnanthemum linifolium (Willd.) Pursh species synonym

Pycnanthemum lanceolatum var. latifolium Benth. variety synonym

Pycnanthemum lanceolatum var. angustifolium Benth. variety synonym

Pycnanthemum incanum var. tullia Chapm. variety synonym

Pycnanthemum incanum var. albescens (Torr. & A.Gray) Chapm. variety synonym

Pycnanthemum arkansanum Fresen. species synonym

Pycnanthemum aristatum var. hyssopifolium (Benth.) A.Gray variety synonym

Origanum incanum Walter species synonym

Origanum flexuosum Walter species synonym

Origanum clinopodioides Walter species synonym

Koellia virginica (L.) Baill. species synonym

Koellia tullia Millsp., 1892 species doubtful

Koellia torreyi (Benth.) Kuntze species synonym

Koellia pycnanthemodes (Leavenw.) Kuntze species synonym

Koellia pilosa (Nutt.) Britton species synonym

Koellia lanceolata (Willd.) Kuntze species synonym

Koellia incana (L.) Kuntze species synonym

Koellia huronensis Greene species doubtful

Koellia fascicularis Greene species doubtful

Koellia dubia Small species synonym

Koellia capitata Moench species synonym

Koellia californica (Torr. ex Durand) Kuntze species synonym

Satureja virginica L. species synonym

Satureja virginiana L. species synonym

Brachystemum virginicum (L.) Michx. species synonym

Brachystemum verticillatum Michx. species synonym

Brachystemum muticum Michx. species synonym

Brachystemum linifolium Willd. species synonym

Brachystemum lanceolatum Willd. species synonym

Thymus verticillatus Poir. species heterotypic synonym

Pycnanthemum californicum Torr. species homotypic synonym

Nepeta virginica L. species heterotypic synonym

Pycnanthemum verticillatum Pursh, 1813 species doubtful

Thymus serratus Poir. species heterotypic synonym

Pycnanthemum torreyi var. torreyi variety synonym

Pycnanthemum virginicum (L.) Pers. species synonym

Pycnanthemum virginicum Nutt., 1818 species doubtful

Koellia clinopodiodes Kuntze, 1891 species doubtful

Pycnanthemum ovatum Nutt. species homotypic synonym

Koellia mutica Britton, 1894 species homotypic synonym

Koellia virginica Farw., 1923 species doubtful

Pycnanthemum californicum var. glabellum A.Gray variety synonym