Family: Equisetum

The family Equisetaceae consists of the sole genus Equisetum, which see. Some workers divide this genus into Equisetum and Hippochaete, but I have not done so here.

I have placed the Equisetums, the psilotoids, and the ophioglossoids together in the division Archeophyta because there are studies that show that they may have an ancient common source after the divergence of true ferns and lycopods. They are probably closer to the seed plants than these other groups, but may be slightly more closely related to each other, representing a phyletic, though distantly-related, group.

Genus of Equisetaceae:

1. Equisetum

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This page was last revised on 11-10-1997.