What is the collective noun for yams?

There isn't a widely recognized collective noun specifically for yams.

However, you could use some general collective nouns that work for vegetables, such as:

* Heap of yams

* Pile of yams

* Basket of yams

* Tub of yams

* Crop of yams

You could also get creative and use a noun that reflects the specific type of yams you're talking about, for example:

* Patch of sweet potatoes (if referring to a field)

* Bundle of yams (if they're tied together)

Ultimately, the best collective noun to use depends on the context and what you're trying to convey.