Common Name: Navelwort
Scientific Name: Umbilicus rupestris
Irish Name: Cornán caisil
Family Group: Crassulaceae
Distinctive, hairless perennial of walls, cliffs and stony banks, this plant, often found in shady places, was so named as each round, fleshy leaf seems to have a little ‘navel’ in its centre. Its drooping, bell-shaped greenish-white flowers grow in spikes on pinkish, rounded stems and are seen from June to September. Despite being unassuming flowers these are attractive to Bumblebees. A native plant, it is also sometimes known as ‘Pennywort’ and is widespread throughout Ireland.
This information is courtesy of http://www.wildflowersofireland.net/