Description: An extraordinary small fern of damp grassy places with a single oval leaf and a spike-like fertile branch which produces the spores. Rare, but also probably overlooked.

All names: Ophioglossum vulgatum L.; Ophioglossum vulgatum ssp. vulgatum L.

Distribution Map from NBN: Ophioglossum vulgatum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Ophioglossum vulgatum at iNaturalist World Species Observations database.