| Verbenaceae | |
Verbena hastata fo. albiflora
| Moldenke | Amer. Midl. Naturalist 24(3): 752 | 1940 |
| Verbenaceae | |
Verbena hastata fo. caerulea
| Moldenke | Amer. Midl. Naturalist 10: 490 | 1964 |
| Verbenaceae | |
Verbena hastata fo. hastata
| | | |
| Verbenaceae | |
Verbena hastata var. hastata
| | | |
| Verbenaceae | |
Verbena hastata var. oblongifolia
| Nutt. | Gen. N. Amer. Pl. 2: 40 | 1818 |
| Verbenaceae | |
Verbena hastata var. paniculata
| Klotzsch ex Lanj. | Rep. (Annual) Commiss. Parks Boulevards Detroit 11: 82 | 1900 |
| Verbenaceae | |
Verbena hastata var. pinnatifida
| (Lam.) Pursh | Fl. Amer. Sept. 2: 416 | 1814 |
| Verbenaceae | |
Verbena hastata fo. rosea
| C.I. Cheney | Rhodora 4(48): 245–246 | 1902 |
| Verbenaceae | |
Verbena hastata var. rosea
| Coleman | Cat. Fl. Pl. S. Pen. Michigan 2: 28 | 1874 |
| Verbenaceae | |
Verbena hastata var. scabra
| Moldenke | Phytologia 9(5): 283–284 | 1963 |