Plant stems that are used as vegetables are called stem vegetables. This term is used for vegetables that are above-ground stems.
Asparagus and celery.
potato spanich
celery...
Florets are small flowers on the stems of certain vegetables. Broccoli and cauliflower for example, have florets at the top of their stems.
Leafy vegetables are any variety of leafy plant that is cultivated for its leaves and stems to be eaten. Examples are lettuce, spinach and greens.
Leaves (spinach), roots and tubers (radishes), stems and buds (broccoli), fruits (peppers), seeds (corn)
Auxin
No. A pickle is made from a cucumber, and cucumbers are members of the fruit family, and grow from stems of the cucumber plant, like apples grow from apple tree stems.
The characteristics are: no flowers, smaller in size, longer stems (for some only), & shorter stems (for some only)
Pineapple is a fruit (composite) as you eat the ripened ovary of the plant. Vegetables are considered "greens" where the leaves, stems or roots are consumed
Mice can eat most vegetables including: carrot broccoli stems the end of beans all of these are not to be cooked!
Do you mean as in Potatoes, Sweet Potatoes, Yams, Tapioca, Kudzu, Arrowroot? These are all starchy veg.
Onions are bulbs, used in cooking as vegetables. Ginger is a rhizome - a horizontal stem of the ginger plant. Tomatoes are a fruit.