| Lamiaceae | |
Physostegia aboriginorum
| Fernald | Rhodora 45(539): 459–461, pl. 783 | 1943 |
| Lamiaceae | |
Physostegia angustifolia
| Fernald | Rhodora 45(539): 462–463, pl. 785, f. 2–7 | 1943 |
| Lamiaceae | |
Physostegia correllii
| (Lundell) Shinners | Rhodora 51(606): 120 | 1949 |
| Lamiaceae | |
Physostegia denticulata
| (Aiton) Britton | Mem. Torrey Bot. Club 5(19): 284 | 1894 |
| Lamiaceae | |
Physostegia digitalis
| Small | Bull. Torrey Bot. Club 25(12): 613 | 1898 |
| Lamiaceae | |
Physostegia edwardsiana
| Shinners | Field & Lab. 19(4): 167–168 | 1951 |
| Lamiaceae | |
Physostegia formosior
| Lunell | Bull. Leeds Herbarium 2: 7 | 1908 |
| Lamiaceae | |
Physostegia godfreyi
| P.D. Cantino | Rhodora 81(827): 415–417, f. 1–4, 6–7, 8 [map], 9 | 1979 |
| Lamiaceae | |
Physostegia granulosa
| Fassett | Rhodora 41(488): 377 | 1939 |
| Lamiaceae | |
Physostegia imbricata
| Hook. | Bot. Mag. 62: t. 3386 | 1835 |
| Lamiaceae | * |
Physostegia imbricata
| Benth. | Prodr. 12: 434 | 1848 |
| Lamiaceae | |
Physostegia intermedia
| (Nutt.) Engelm. & A. Gray | Boston J. Nat. Hist. 5(2): 257 | 1845 |
| Lamiaceae | |
Physostegia latidens
| House | New York State Mus. Bull. 176: 38 | 1915 |
| Lamiaceae | |
Physostegia ledinghamii
| (B. Boivin) P.D. Cantino | Rhodora 83(833): 111 | 1981 |
| Lamiaceae | |
Physostegia leptophylla
| Small | Bull. New York Bot. Gard. 1(4): 286 | 1899 |
| Lamiaceae | |
Physostegia longisepala
| P.D. Cantino | Contr. Gray Herb. 211: 69–72, f. 15 | 1982 |
| Lamiaceae | |
Physostegia lundelliorum
| P.D. Cantino & Mabb. | Lejeunia, n.s. 209: 24 | 2023 |
| Lamiaceae | |
Physostegia micramona
| Lundell | Wrightia 2: 8 | 1959 |
| Lamiaceae | |
Physostegia micrantha
| Lundell | Wrightia 2(1): 8–10, f. 4 | 1959 |
| Lamiaceae | |
Physostegia nivea
| Lundell | Wrightia 5(3): 70–71 | 1974 |
| Lamiaceae | * |
Physostegia nuttallii
| (Britton) Fassett | Rhodora 41(491): 525 | 1939 |
| Lamiaceae | |
Physostegia obovata
| (Elliott) R.K. Godfrey ex Weath. | Rhodora 44(524): 254 | 1942 |
| Lamiaceae | |
Physostegia parviflora
| Nutt. ex A. Gray | Syn. Fl. N. Amer. 2(1): 383 | 1878 |
| Lamiaceae | |
Physostegia praemorsa
| Shinners | Field & Lab. 19(4): 166–167 | 1951 |
| Lamiaceae | * |
Physostegia pulchella
| Lundell | Wrightia 2(1): 4–8, f. 2–3 | 1959 |
| Lamiaceae | ! |
Physostegia pulchella
| Jacques | Ann. Fl. Pomone sér. 2, 4: 19, t. [3] | 1845 |
| Lamiaceae | |
Physostegia purpurea
| (Walter) S.F. Blake | Rhodora 17(199): 134 | 1915 |
| Lamiaceae | |
Physostegia serotina
| Shinners | Field & Lab. 24(1): 17–18 | 1956 |
| Lamiaceae | |
Physostegia speciosa
| Sweet | Hort. Brit. (ed. 2) 406 | 1830 |
| Lamiaceae | |
Physostegia truncata
| Benth. | Labiat. Gen. Spec. 505 | 1834 |
| Lamiaceae | |
Physostegia variegata
| (Vent.) Benth. | Edwards's Bot. Reg. 15: t. 1289 | 1829 |
| Lamiaceae | |
Physostegia veroniciformis
| Small | Fl. S.E. U.S. 1028, 1337 | 1903 |
| Lamiaceae | |
Physostegia virginiana
| (L.) Benth. | Labiat. Gen. Spec. 504 | 1834 |