This non-registered cultivar of unidentified parentage was originated in Japan. From the digital image we viewed, it appears to be a small size plant with yellow leaves.

According to a 2010 article by W. George Schmid, this is the yellow form of the species H. rupifraga which was found in the wild Mount Nishi (Hachijo-Fuji) in Japan. Its leaves are a bit more wavy than those of the species.

A sport of H. rupifraga would have purple-red petioles, twisted leaves with a sharp point and shiny top surface. It would bear lavender flowers with purple stripes and purple-yellow anthers in September followed by viable seeds.

Yellow Silk Cloth