What's the plural form of couchgrass? Here's the word you're looking for.
Answer
The noun couchgrass can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be couchgrass.
However, in more specific contexts, the plural form can also be couchgrasses e.g. in reference to various types of couchgrasses
or a collection of couchgrasses.
