Above left: Purple onion (l.s.)- The onion is a "bulb", and is a good example of a modified, underground stem with very short internodes. The part of the onion we eat is comprised of fleshy modified leaves.

 

Above Right: Cabbage (l.s.)- Cabbage is another example of a modified stem with short internodes. 

 

Left: Radish- an example of a tap root modified for storage.