Description, distribution and ecology.
Horsetails: Relic Plants from Prehistory
Photographic study by Dave Walker of these plants, including photomicrographs of the cross section of a cone.
World of Equisetum
Detailed species accounts of the horsetails (Equisetum subgenus Equisetum).
Last update:October 29, 2015 at 14:54:10 UTC