Tuber vegetables are plants of which the tubers are used as food (e.g. potato). Tubers are modified roots or stems that are enlarged to store nutrients.
Crop categories
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Bulb vegetables are plants of which the bulbs are used as food (e.g. onions). A bulb is a short stem with fleshy leaves or leaf bases.
Root vegetables are plants of which the roots are used as food. An example of a root vegetable is the carrot with its swollen roots.
Flower vegetables are plants of which the flowers are used as food, for example cauliflower and artichoke.
Fruit vegetables are plants of which the fruits are used as a vegetable. Plants with sweet or fleshy fruits that are eaten raw are not fruit vegetables.
The category “Stem vegetables” includes plants of which the stems are used as food, for example asparagus is a stem vegetable.