Cascade was released by the USDA, Washington State University and the Washington State Potato Commission in 1969. It was the only selection of a cross between B3820-14 x PI214372. It was tested as No.
Plants are medium sized and spreading.
Stems are green, medium thick with slight wings. Leaves are green, slightly pubescent and open. There are four pairs of primary leaflets and secondary and tertiary leaflets are abundant. Maturity is main season. Tubers are oblong with shallow eyes and bright white, smooth skin that shows occasional slight cracking.