Equisetaceae: General description of this family of terrestrial, herbaceous, homosporous vascular plants, comprising a single genus with about 15 species. Includes photos of several Equisetum species.
Horsetails - Equisetaceae: Brief description of the horsetail family, including descriptions of several Equisetum species.
Phylum Sphenophyta: Includes phylum description, and links to images of members of the Equisetaceae (horsetails).