One of the yellow flowered, not very toad like, 'Toad Lilies'. It comes from Japan, and is rather fussy about
its growing conditions. It likes full shade and a well drained moist soil when in growth. It does not
like to dry out in summer, but will not stand being waterlogged during the winter.
I grow it under the shade of a large Magnolia where the surface water draining from the hill keeps
the ground moist.