The giant leopard plant, or green leopard plant (formerly known as Ligularia tussilaginea) is a member of the Asteraceae family and is native to streams and seashores of Japan, where it is called Tsuwabuki.
The name ‘leopard plant’ comes from the yellowish spots some varieties have marking the leaves. You can see a mottling on the large leaf in the main photo but not the more obvious ‘leopard’ spot.
It has large bright green shiny rounded leaves, and beautiful yellow daisy-like flowers and enjoys moist and shady conditions.
I found this one at my local hospital recently bordering a man-made stream and waterfall, but what attracted me to it initially were it’s seed stalks – i thought i had found a great big clump of dandelions about to send their seeds floating all over the park! (See bottom photo for a close-up.) 🙂