Unknown plant

Unknown plant

Observation - Unknown plant - UK and Ireland. Description: Several very large clumps of this plant growing together by a lake. Each leaf about 8 inches in length with various markings on themm similar to those on the photo. At the time of the photo, there were no stems arising from the plant

Several very large clumps of this plant growing together by a lake. Each leaf about 8 inches in length with various markings on themm similar to those on the photo. At the time of the photo, there were no stems arising from the plant