They are related to ferns - vascular, nonflowering plants.

Species on page

Great horsetail (Equisetum telmateia)

Western scouringrush (Equisetum hyemale ssp. affine)

Rough horsetail (Equisetum hyemale)

Great horsetail (Equisetum telmateia)

Great horsetail (Equisetum telmateia)
Family: Equisetaceae
Pomponio Creek - 2021
June 19, 2021 - Juneteen bioblitz
Canon 7D markII

Horsetail

Equisetum
Family: Equisetaceae
Jasper Ridge
October 26, 2013
Photographing Nature class

Horsetail

Equisetum
Order: Equisetales
Family: Equisetaceae
Jasper Ridge
October 30, 2016
Northern California Science Writers Association (NCSWA) docent walk
Canon 7dmark2

Horsetails

Horsetails
Family: Equisetaceae
Jasper Ridge
February 3, 2018
Canon 7Dmark2

Western scouringrush (Equisetum hyemale ssp. affine)

Western scouringrush (Equisetum hyemale ssp. affine)
Family: Equisetaceae (horsetail family)
Docent group tour
Jasper Ridge
September 26, 2021
Canon 7Dmark2

Rough horsetail (Equisetum hyemale)

Rough horsetail (Equisetum hyemale)
Family: Equisetaceae (horsetail family)
Jasper Ridge
With Joel Simon's photography class
April 27, 2024
Canon 7D Mark II

Other relevant links

Horses

Last modified: May 1, 2024
Created: October 30, 2013 (from poisonoak.html)
Renamed: November 2, 2016 (from horsetail.html)
Contact: siegelr@stanford.edu
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