Potato is $(underground)$ stem because it
Possesses axillary buds $(Eyes)$
Lacks chlorophyll
Does not bear roots
Contains reserve food
Definitions / Explanation :
$(i)$ Leaf like stem Phylloclade
$(ii)$ Stolon
Delete odd one:
Give scientific reasons : Opuntia has phylloclade.
Potatoes develop on
Expanded green stem of Opuntia is called