The name is sometimes made to include other species of the same genus.

Among the species of its genus, it has no close living relatives.

The name is also given vaguely to several other species of the same genus.

It has been described as the most well known and desirable species of the genus.

Formerly, the name was also applied to other species of the same genus.

It is the largest species of the genus, at between 15-20 mm.

The earlier species of the genus are smaller and more primitive than the later forms.

Today, this is the only species of its genus.

It is the only known species of its genus.

Some species of the genus are used as herbal remedies.