For a long time these two species were considered to be one.

It is considered a common species in most of its range.

As of March 2003, it is no longer considered a species.

In 1996, it had been considered a species of least concern.

This particular plant is not always considered a species in its own right.

However, it has been considered a full species in recent literature.

However, it has been considered a separate species since 2001.

Some or all of these are often considered distinct species.

We have more or less the same result by having species considered separately.

Because of this the species is considered to be endangered.