Blechnum chilense is a fern in the Blechnaceae family that suits sheltered, shady corners where soil stays evenly moist. It prefers rich, well-drained soil with an acidic to neutral pH and avoids direct sun. Fronds remain present into winter, making it useful for year-round structure in shade. Plant it where a spreading, low-maintenance ground layer is required in woodlands or deep shade beds.

Chile blechnum (Blechnum chilense) thrives in sheltered shade on moist, acidic to neutral soil and suits woodland or shade gardens.

https://en.wikipedia.org/wiki/Parablechnum_cordatum

Parablechnum is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, according to the Pteridophyte Phylogeny Group classification of 2016. The genus is accepted in a 2016 classification of the family Blechnaceae, but other sources sink it into a very broadly defined Blechnum, equivalent to the whole of the PPG I subfamily.

Blechnum chilense

Chile blechnum | Blechnum chilense

Woodwardia radicans is a tall fern reaching about 1.8 m, suited to shaded, moisture-retentive sites. It prefers partial shade to full shade and tolerates sandy, loamy or clay soils that are moist or wet. Plant in a sheltered spot and allow space for its height when placing it in woodland, shade gardens or moist borders.

European chain fern (Woodwardia radicans) is a tall shade fern to about 1.8 m that prefers moist, sheltered sites and suits woodland and moist borders.

https://en.wikipedia.org/wiki/Woodwardia_radicans

Woodwardia is a genus of ferns in the family Blechnaceae, in the suborder Aspleniineae of the order Polypodiales. Species are known as netted-chain ferns.

Woodwardia radicans

European chain fern | Woodwardia radicans

Woodwardia virginica is a fern that favours moist, shaded sites and typically reaches about 0.4 m. A member of the Blechnaceae, it tolerates sandy, loamy and clay soils provided they remain moist to wet. Plant it in partial shade or full shade where soil does not dry out. It is fully hardy in the UK (H7) and also spans USDA zones 3–10.

American chain fern Woodwardia virginica prefers moist, shaded soils and reaches about 0.4 m, ideal for woodland gardens and moist borders in the UK.

Anchistea is a genus of leptosporangiate ferns in the family Blechnaceae. It has only one species, Anchistea virginica the Virginia chain fern, which has long creeping, scaly, underground stems or rhizomes giving rise to tall widely separated, deciduous, single leaves.