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