Other well-represented families include about 500 types of ferns and fern allies, Chinese medicinal herbs, plants of economic importance, Old rose cultivars, and California native plants.

Lycopodiopsida is a class of plants often loosely grouped as the fern allies.

An expert on ferns and fern allies from the British Isles, he served as Curator of the Society of Apothecaries Garden from 1848 to 1887.

Australia has over 30,000 described species of vascular plants, these include the angiosperms, seed-bearing non-angiosperms (like the conifers and cycads), and the spore-bearing ferns and fern allies.

Spore bearing vascular plants include the ferns and fern allies.

Ferns and fern allies of Papua New Guinea.

Ferns and fern allies of Pennsylvania.

There are some fifty types of trees, including ten species of oaks, and a rich flora of wildflowers and seventeen species of ferns and fern allies.

The term "pteridophyte" has traditionally been used to describe all seedless vascular plants, making it synonymous with "ferns and fern allies".

In practice, numerous classification schemes have been proposed for ferns and fern allies, and there has been little consensus among them.