Saltmarsh vs Barilla - What's the difference?

As nouns the difference between saltmarsh and barilla

is that saltmarsh is while barilla is any of several unrelated saltmarsh plants that were once burnt to obtain soda ash.

(Salt marsh)

(es)

(wikipedia barilla) (en noun)

Any of several unrelated saltmarsh plants that were once burnt to obtain soda ash

The alkali produced from the plant, an impure carbonate of soda, used for making soap, glass, etc., and for bleaching.

Impure soda obtained from the ashes of any seashore plant, or kelp.

(Ure)

* copper barilla