Dracocephalum denticulatum
| Dracocephalum denticulatum Aiton, Hort. Kew. 2: 317. 1789. | | TYPE: SOUTH CAROLINA: Cult. in England, Aug, Aiton s.n. (holotype: BM). |
Dracocephalum lancifolium
| Dracocephalum lancifolium Moench, Methodus 410. 1794, nom. illegit. | BASIONYM: Dracocephalum virginianum Linnaeus 1753. | |
Dracocephalum virginianum
| Dracocephalum virginianum Linnaeus, Sp. Pl. 594. 1753. | | TYPE: VIRGINIA: Witout data (lectotype: LINN 746.1). Lectotypified by Epling, J. Bot. 67: 10. 1929. |
Physostegia denticulata
| Phystostegia denticulata (Aiton) Britton, Mem. Torrey Bot. Club 5: 284. 1894. | BASIONYM: Dracocephalum denticulatum Aiton 1789. | |
Physostegia virginiana forma denticulata
| Physostegia virginiana (Linnaeus) Bentham, forma denticulata (Aiton) Bentham ex Voss, Vilm. Blumengärtn., ed. 3. 1: 856. 1895. | BASIONYM: Dracocephalum denticulatum Aiton 1789. | |
Physostegia virginiana var. denticulata
| Physostegia virginiana (Linnaeus) Bentham, var. denticulata (Aiton) A. Gray, Syn. Fl. N. Amer. 2(1): 383. 1878, non Chapman 1860. | BASIONYM: Dracocephalum denticulatum Aiton 1789. | |
Dracocephalum formosior
| Dracocephalum formosior (Lunell) Rydberg, Brittonia 1: 95. 1931. | BASIONYM: Physostegia formosior Lunell 1908. | |
Dracocephalum formosior
| Dracocephalum formosior Lunell, Bull. Leeds Herb. 2: 7. 1908. | | TYPE: NORTH DAKOTA: Ward Co.: Along Souris River at Minot, 22 Aug 1908, Lunell 883 (lectotype: MIN). Lectotypified by Cantino, Contr. Gray Herb. 211: 87. 1982. |
Dracocephalum louisianum
| Dracocephalum louisianum Lemaire, Hort. Universel 4: 298. 1843. | | |
Dracocephalum speciosum
| Dracocephalum speciosum Sweet, Brit. Fl. Gard. 1: t. 93. 1825. | | |
Dracocephalum virginianum var. granulosum
| Dracocephalum virginianum Linnaeus, var. granulosum (Fassett) Core, Castanea 37: 301. 1972. | BASIONYM: Physostegia granulosa Fassett 1939. | |
Dracocephalum virginianum var. speciosum
| Dracocephalum virginianum Linnaeus, var. speciosum (Sweet) Farwell, Pap. Michigan Acad. Sci. 1: 97. 1923. | BASIONYM: Dracocephalum speciosum Sweet 1825. | |
Physostegia formosior forma alba
| Physostegia formosior Lunell, forma alba J. W. Moore, Rhodora 52: 58. 1950. | | TYPE: MINNESOTA: Roseau Co.: 0.25 mi. NW of Warroad, 2 Aug 1939, Moore & Moore 11399 (holotype: MIN). |
Physostegia granulosa
| Physostegia granulosa Fassett, Rhodora 41: 377. 1939. | | TYPE: CANADA: Quebec: Cap-Rouge Co.: Cap-Rouge, 21 Aug 1928, Victorin 28178 (holotype: WIS). |
Physostegia imbricata
| Physostegia imbricata Hooker, Bot. Mag. 62: t. 3386. 1835. | | |
Physostegia latidens
| Physostegia latidens House, Bull. New York State Mus. 176: 38. 1915. | | TYPE: NEW YORK: Oneida Co.: Along roadside and in a field W of State Road, just S of Utica, 10 Aug 1912, Haberer 3084 (holotype: NYS). |
Physostegia nivea
| Physostegia nivea Lundell, Wrightia 5: 70. 1974. | | TYPE: TEXAS: Dallas Co.: Cult. in Garden, 10 Jul 1974, Lundell 18837 (holotype: LL; isoytpe: GH). |
Physostegia praemorsa
| Physostegia praemorsa Shinners, Field & Lab. 19: 166. 1951. | | TYPE: TEXAS: Fannin Co.: 0.6 mi. WSW of Honey Grove, 16 Oct 1949, Shinners 11980 (holotype; SMU; isotype: SMU). |
Physostegia serotina
| Physostegia serotina Shinners, Field & Lab. 24: 17. 1956. | | TYPE: LOUISIANA: Calcasieu Par.: E side of Lake Charles, 9 Oct 1955, Shinners 22108 (holotype; SMU; isotypes: BH, DUKE, FSU, GA, GH, MICH, NY, SMU, TEX, WIS). |
Physostegia speciosa
| Physostegia speciosa (Sweet) Sweet, Hort. Brit., ed. 2. 406. 1830. | BASIONYM: Dracocephalum speciosum Sweet 1825. | |
Physostegia speciosa var. glabriflora
| Physostegia speciosa (Sweet) Sweet, var. glabriflora Fassett, Rhodora 41: 377. 1939. | | TYPE: WISCONSIN: Racine Co.: Racine, s.d., Hale s.n. (holotype: WIS). |
Physostegia virginiana forma alba
| Physostegia virginiana (Linnaeus) Bentham, forma alba (J. W. Moore) B. Boivin, Naturaliste Canad. 93: 574. 1966. | BASIONYM: Physostegia formosior Lunell, forma alba J. W. Moore 1950. | |
Physostegia virginiana forma candida
| Physostegia virginiana (Linnaeus) Bentham, forma candida Benke, Amer. Midl. Naturalist 16: 423. 1935. | | TYPE: ILLINOIS: Cook Co.: Arlington Heights, 25 Aug 1934, Benke 5681 (holotype: F; isotypes; GH, US). |
Physostegia virginiana forma speciosa
| Physostegia virginiana (Linnaeus) Bentham, forma speciosa (Sweet) Bentham ex Voss, Vilm. Blumengärtn., ed. 3. 1: 856. 1895. | BASIONYM: Dracocephalum speciosum Sweet 1825. | |
Physostegia virginiana subsp. praemorsa
| Physostegia virginiana (Linnaeus) Bentham, subsp. praemorsa (Shinners) Cantino, Contr. Gray Herb. 211: 97. 1982. | BASIONYM: Physostegia praemorsa Shinners 1951. | |
Physostegia virginiana var. elongata
| Physostegia virginiana (Linnaeus) Bentham, var. elongata B. Boivin, Naturaliste Canad. 93: 573. 1966. | | TYPE: CANADA: Quebec: Ile Perrot, 1 Sep 1927, Victorin & Rolland-Germain 29005 (holotype: DAO; isotypes: DAO, GH). |
Physostegia virginiana var. formosior
| Physostegia virginiana (Linnaeus) Bentham, var. formosior (Lunell) B. Boivin, Naturaliste Canad. 93: 574. 1966. | BASIONYM: Physostegia formosior Lunell 1908. | |
Physostegia virginiana var. granulosa
| Physostegia virginiana (Linnaeus) Bentham, var. granulosa (Fassett) Fernald, Rhodora 45: 464. 1943. | BASIONYM: Physostegia granulosa Fassett 1939. | |
Physostegia virginiana var. reducta
| Physostegia virginiana (Linnaeus) Bentham, var. reducta B. Boivin, Naturaliste Canad. 93: 572. 1966. | | TYPE: INDIANA: Cass Co.: Along railroad 0.5 mi. E of Lake Cicott, 26 Sep 1936, Friesner 10132 (holotype: DAO; isotypes: CU, GA, ILL, NY, OKL, SMU). |
Physostegia virginiana var. speciosa
| Physostegia virginiana (Linnaeus) Bentham, var. speciosa (Sweet) A. Gray, Syn. Fl. N. Amer. 2(1): 383. 1878. | BASIONYM: Dracocephalum speciosum Sweet 1825. | |