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:January 5, 2017 at 16:35:11 UTC