Maybe some one else will set me straight on this, but years ago I was asking 'what is Claro Walnut?' Of all the definitions I have heard, I think it is more specifically a color variation given to Juglens Hindisii which is a species native to Northern and Central California. I have heard several names for the boundary area of grafted English/Persian walnut onto other darker walnut species, and that includes Claro... Other than that, figure is a whole different thing... with just as many name variations...
robo hippy