It's because they don't even have a generic name for themselves.

A generic name used for the site during the construction phase.

There are a number of other buildings throughout the school, given generic names.

The generic name is derived from that of the type species' author.

Its generic name is derived from the country in which it was first discovered.

Find the brand or generic name of the medicine you take and see which type it is.

At times they were also called by the generic name of Archipelago.

The generic name refers to the country in which it was discovered.

The history of this generic name is complicated and confusing.

There was also a lot to be said for Dopey as a generic name.