Koellia aristata
| Koellia aristata Kuntze, Revis. Gen. Pl. 2: 520. 1891, nom. illegit. | BASIONYM: Pycnanthemum aristatum Michaux 1803, nom. illegit.; Nepeta virginica Linnaeus 1753. | |
Koellia flexuosa
| Koellia flexuosa (Walter) MacMillan, Metasperm. Minnesota Valley 452. 1892. | BASIONYM: Origanum flexuosum Walter 1788. | |
Koellia hyssopifolia
| Koellia hyssopifolia (Bentham) Britton, Mem. Torrey Bot. Club 5: 279. 1894. | BASIONYM: Pycnanthemum hyssopifolium Bentham 1834. | |
Koellia virginica
| Koellia virginica (Linnaeus) Farwell, Pap. Michigan Acad. Sci. 2: 37. 1923, non Baillon 1892. | BASIONYM: Nepeta virginica Linnaeus 1753. | |
Nepeta virginica
| Nepeta virginica Linnaeus, Sp. Pl. 571. 1753. | | TYPE: VIRGINIA: |
Origanum flexuosum
| Origanum flexuosum Walter, Fl. Carol. 165. 1788. | | TYPE: SOUTH CAROLINA: Without data, Fraser/Walter 79-C (neotype: BM). Neotypified by Fernal & Schubert, Rhodora 50: 220-222, pl. 1112. 1948; D. B. Ward, J. Bot. Res. Inst. Texas 1: 417. 2007. |
Pycnanthemum aristatum
| Pycnanthemum aristatum Michaux, Fl. Bor.-Amer. 2: 8. 1803, nom. illegit. | BASIONYM: Nepeta virginica Linnaeus 1753. | |
Pycnanthemum aristatum var. hyssopifolium
| Pycnanthemum aristatum Michaux, var. hyssopifolium (Bentham) A. Gray, Syn. Fl. N. Amer. 2(1): 354. 1878. | BASIONYM: Pycnanthemum hyssopifolium Bentham 1834. | |
Pycnanthemum hyssopifolium
| Pycnanthemum hyssopifolium Bentham, Labiat. Gen. Spec. 329. 1834. | | TYPE: VIRGINIA: Southampton Co.: Without data, Pursh s.n. (lectotype: K). Lectotypified by E. Grant & Epling, Univ. Calif. Publ. Bot. 20: 230. 1943. |
Koellia hugeri
| Koellia hugeri Small, Fl. S.E. U.S. 1047, 1337. 1903. | | TYPE: NORTH CAROLINA: Henderson Co.: Hendersonville, Sep 1900, Huger s.n. (holotype: NY). |