In the packaging world it is rather common to hear the term bio-plastics.
Bio-plastics consist of both biodegradable and bio-based plastics. However, there is a key difference between what’s biodegradable and what’s bio-based.
Not all bio-plastics are biodegradable, nor all bio-plastics are bio-based.
As you can see, some bioplastics are bio based (but not biodegradable).
Some bioplastics are biodegradable (but fossil based).
Some bioplastics are bio based and biodegradable.