This island is also the type locality for the species.

There are two type localities, both in the north of England.

So far it has only been collected in or near the type locality.

The specific name is derived from the country of the type locality.

It is a rare plant, known only from the type locality.

The type locality was not included in the original description.

The species name is derived from the general type locality, Texas.

It is known only from the type locality in southern Brazil.

The species name is derived from that of the type locality.

This species has had problems with its name, description and type locality.