The most common variety the red (summer) radish can also be red/white in colour.
The bulb of the radish is usually eaten raw, tougher ones are usually steamed.
When eaten raw the flesh has a crisp texture but also a strong peppery flavour.

The winter varieties are better if they are large and mature.
Avoid oversized summer radishes as they are usually tough, woody and strong in flavour.

WA - Outer Metropolitan Areas.