| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Melanthiaceae | Amianthium | Fly-poison |  (c) Bridges, Edwin | ||
| Melanthiaceae | Anticlea | Death-camas |  (c) Fleming, Gary P. | ||
| Melanthiaceae | Melanthium | Bunchflower |  (c) Gwaltney, John | ||
| Melanthiaceae | Schoenocaulon | Feathershank |  (c) Ward, Scott G | ||
| Melanthiaceae | Stenanthium | Featherbells, Featherfleece |  (c) Sorrie, Bruce A. - CC-BY | ||
| Melanthiaceae | Toxicoscordion | Poison Camas |  (c) Campos, Aidan | ||
| Melanthiaceae | Veratrum | White-hellebore |  (c) Bridges, Edwin | ||
| Melanthiaceae | Zigadenus | Death-camas |  (c) Sorrie, Bruce A. - CC-BY |