Scientific Name: Lunularia cruciata (Lunulariaceae).
English Name: Crescent-cup Liverwort.
French Name: La Lunulaire.
5 Key Characters:
- has easily visible crescent shaped cups growing on the surface.
- light bright green.
- covered in tiny but easily visible air pores.
Lookalikes: There are several similar species, but they have black lines, full cups or lack visible air pores.
Habitat: Damp places, especially gardens and greenhouses. Also at the base of damp walls.
Status: Very common.
Photographed by Loire Valley Nature: