What's the plural form of jointweed? Here's the word you're looking for.
Answer
The noun jointweed can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be jointweed.
However, in more specific contexts, the plural form can also be jointweeds e.g. in reference to various types of jointweeds
or a collection of jointweeds.
As you explore these and other ecosystems watch for a variety of rare and endangered wildflowers including Large leaved Jointweed, and Cruise's and Godfrey's golden asters.