Jpl vs Beet - What's the difference?

As an initialism jpl

is (space|us).

bed (for plants).

(Initialism) (en-initialism)

(space, US)

(singulare tantum, sometimes, definite) Beta vulgaris , a plant with a swollen root which is eaten or used to make sugar.

The beet is a hardy species.

(countable) An individual plant (organism) of that species.

They sell beets by the pound in the supermarket. All I want is the roots. Can I cut off the roots and buy them alone?

(countable) A swollen root of such a plant.

* beetroot * beeturia * lettucebeet * mangel beet * red beet * silverbeet * sugar beet, sugarbeet