Rth. Hsinying Catherine 'Hakucho'

Each flower of this hybrid will undergo a stunning color-evolving transition from a soft yellow to a slight lime green to a clean white with yellow at the center where each petal meets, also featuring a vibrant fuchsia-tipped yellow lip. Currently available as a mature, blooming size plant potted in a 5.5" pot. This variety usually blooms some time between the winter and spring months. 
Not currently in bud/spike, but plants have sheaths.

Bloom picture courtesy of Akatsuka Orchids.