What is the name of this plant? (found in a rock)
I have been looking into this for days, but this plant is difficult to identify without its flower. I reached out to a botanist at Dartmouth, who suggests that it is either one of two species-- a nasturtium (Tropaeoleum sp.) or a geranium (pelargonium). The leaves are what are called peltate, meaning shield-like with the stem attached directly underneath. 



Source:


Botanist at Dartmouth
http://etc.usf.edu/clipart/48400/48426/48426_peltate_leaf.htm 




On further research, specifically of peltate leaves, this plant looks more like Umbilicus rupestris, which is commonly found in southern Europe and grows in damp rock crevices!

Source:


http://en.wikipedia.org/wiki/Umbilicus_rupestris