Links

Here are a number of links to further information about horsetails on the Internet. This is currently a small selection - there is a surprising amount available. I hope to soon develop this list into a much more comprehensive guide.

General

• World of Equisetum
• Introduction to the Sphenophyta: Yesterday's trees, today's horsetails
• Plants For A Future: Equisetaceae
• 'Horsetails' - relic plants from prehistory

Biology & Systematics

• Life History and Ecology of the Sphenophyta
• Sphenophyta
• Equisetum Lecturer

Genus / Species descriptions

• Equisetum
• Den virtuella floran: Equisetum L. (Swedish Museum of Natural History)

Fossils

• Fossil Record of the Sphenophyta

Herbals

• Horsetails
• Equisetum Monograph
• Equisetum: The Search for a Polycrest

Floras

• Género: Equisetum
• Flora of North America: Equisetaceae
• Flora de Costa Rica: Equisetum
• Arkansas Biodiversity: Equisetaceae
• Atlas of the Vascular Plants of Utah: Equisetaceae
• CalFlora Database: Equisetaceae

Images

• Sphenopsids
• Non-Flowering Plant Families, UH Botany
• Equisetaceae
• Equisetaceae
• Images of the Equisetaceae

DNA Sequences

• NCBI Sequence Data: Equisetaceae