I recently acquired this H. kikutii form. What makes it interesting is the big difference between the front and the back of the leaves. The front of the leaves is dark green and with a bit of rain they even look very shiny as the next picture shows.

However from below the look is dramatically different: the undersides of the leaves are covered with a thick white coating and the back of the petioles are also glaucous.

It could be a form of H. kikutii f. leuconota (white-backed kikutii), the one I already have has smaller, stiffy leaves that are also glaucous above.

Another interesting feature of this hosta is that the leaf edges tend to curl down, giving the leaves a swollen look.