Sadleria cyatheoides Blechnaceae or Chain fern family Synonyms: Blechnum cyatheoides, Blechnum fontanesianum, Blechnum kaulfussianum ...

Cyclosorus interruptus Thelypteridaceae or Marsh fern family Synonyms: Aspidium gongylodes, Aspidium resiniferum, Aspidium unitum, Christella ...

... challenge. Most common is confusion between the three most common species: S. cyatheoides, S. pallida, and S. souleyetiana ...

Reholttumia hudsoniana formerly Pneumatopteris hudsoniana & Cyclosorus hudsonianus Thelypteridaceae or Marsh fern family Synonyms ...