Moonwort (Botrychium lunaria) is a fern in the family Ophioglossaceae. The leaf is pinnate and is divided into a sterile frond and a fertile frond. The sterile frond of the leaf has 4 to 9 pairs of fan-shaped leaflets or pinnae. The fertile part of the leaf is very different in shape, with rounded, grapelike clusters of sporangia producing spores by which it reproduces. It has a preference for neutral to alkaline soils, on limestone or chalk, or in other lime-rich habitats. It occurs up to 2,500 metres Val di Fassa, Dolomites, June 2019