| Tofieldiaceae | |
Harperocallis
| McDaniel | J. Arnold Arbor. 49(1): 36–38, f. 1–2 | 1968 |
| Tofieldiaceae | * |
Isidrogalvia
| Ruiz & Pav. | Fl. Peruv. Prodr. 3: 69 | 1802 |
| Tofieldiaceae | |
Pleea
| Michx. | Fl. Bor.-Amer. 1: 247–248, pl. 25 | 1803 |
| Tofieldiaceae | ! |
Tofieldia
| Huds. | Fl. Angl. (ed. 2) 157("175") | 1778 |
| Tofieldiaceae | * |
Triantha
| (Nutt.) Baker | J. Linn. Soc., Bot. 17(2): 490 | 1879 |
| Tofieldiaceae | |
Triantha
| Nutt. | Gen. N. Amer. Pl. 1: 236 | 1818 |
| Tofieldiaceae | |
Trianthella
| House | Amer. Midl. Naturalist 7(4–5): 127 | |