root
It's hard to tell. it's best to just memorize these things- carrot is a root, sweet potato is a root, potato is a stem, etc.
Sweet potato is root modification and potato is stem modification both are the example for analogy
Sweet potato is a type of potato but it is not like potato produce by underground stem but by storage root
answer.com feels that sugarcane is a stem of a plant
Sweet potato is a fibrous root because the potato itself is the root.
potato
A portion of a root swells for food or water storage, e.g. sweet potato. A type of storage root distinct from taproot.
it is
Stem tuber of the potato plant is edible
yes
Brassica. potato is not a root its a tubar, sweet potato is a root. cabbage is leaves and undeveloped flower
Are you directing at the plant or the sweet potato which is a root itself? Well, the adaptation for the sweet potato plant's root is that it is a structural adaptation and is modified to store food well. As for the sweet potato plant itself , it's the root and the creeping stem which is extensive as it covers a greater area of land.