Leaf petioles extend downward. Nodes are not swollen. Leaves have a distinct terminal leaflet with four pairs of primary leaflets which are largest near the terminal leaflet. Secondary leaflets vary from two on lower leaves to 6-8 on upper leaves, usually in pairs. The number of tertiary leaves also increases from lower to upper leaves.
Flowers are violet to light-violet with yellow anthers.
Tubers slightly oval, may be somewhat flattened with yellow-white skin and light yellow tuber flesh. Yukon Gold is resistant to mild mosaic, moderately resistant to leafroll virus and susceptible to virus Y, common scab and air pollution. In some growing areas, hollow heart and internal heat necrosis may be a problem. Yukon Gold retains the yellow flesh color when baked, boiled or french-fried. The attractive tubers are well suited for fresh marketing.