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