undulata
H. 'Undulata'
White leaves with green streaks running through them. Showy. Also known as H. 'Koreana Variegated'. The RHS Plant Finder lists this as a species.
Plant Size
  Medium: 14" x 32"  
Leaf
  6" x 2"; white, green margins - centre viridescence  
Flower
  Pale lavender  
Parentage
  unknown  
undulataundulata