sweet potato (Ipomoea batatas)
tuber; taro; yokel; bumpkin; dud; worthless thing
roasted sweet potato; baked sweet potato
potato (Solanum tuberosum)
digging for sweet potatoes (esp. as an outing); country bumpkin; yokel
Japanese yam (Dioscorea japonica)
rough potato (Metaplexis japonica)
rough potato (Metaplexis japonica)