| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Onocleaceae | Matteuccia | Ostrich Fern |  (c) Cressler, Alan M. | ||
| Onocleaceae | Matteuccia struthiopteris var. pensylvanica | Ostrich Fern | Alluvial forests and calcareous wetlands; sometimes grown as a woodland garden (shade) ornamental. | The species is circumboreal; the North American var. pensylvanica ranges from Newfoundland and Labrador (Newfoundland) west to Alaska, south to Virginia (Smyth and Craig counties), n. Missouri, South Dakota, and British Columbia. |  (c) Cressler, Alan M. |
| Onocleaceae | Onoclea | Sensitive Fern |  (c) Bradley, Keith | ||
| Onocleaceae | Onoclea sensibilis | Sensitive Fern, Bead Fern | Marshes, swamps, bottomland forests, ditches, wet disturbed places. | Newfoundland and Labrador (Newfoundland) west to Minnesota and Colorado, south to Florida and Texas. O. interrupta of e. Asia is sometimes treated as a variety or included in O. sensibilis without taxonomic recognition (see synonymy). | (c) Bradley, Keith |
| Onocleaceae | Onocleaceae | Sensitive Fern Family | (c) Bradley, Keith |