What's the plural form of barrenwort? Here's the word you're looking for.
Answer
The noun barrenwort can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be barrenwort.
However, in more specific contexts, the plural form can also be barrenworts e.g. in reference to various types of barrenworts
or a collection of barrenworts.
Examples
There is no more exquisite plant in our coast woods than the American barrenwort.
Forest floors are covered with swordfern, alumnroot, barrenwort, and trillium, and there are thickets of huckleberry, azalea, elder, and wild currant.