With about 400 species it is considered a large genus.

Such a large genus cannot be described by a few general terms.

It is by far the largest genus of its family, Commelinaceae.

This is a large genus and new species continue to be added.

It is a large genus with about 50 species, some threatened or already extinct.

It is a very large genus, spread across the Old World.

Within large genera, however, a range of form is sometimes found.

It is the largest genus of any in the order Stauromedusae.

It was a large genus with about 20 species.

This family is known for some large genera, such as Hyneria.