FloraFinder.org
Home   About Us   Want to Help?   FAQ  
Searching   Image Use Biblio

Equisetum arvense

Equisetum arvense L.

Equisetum arvense L. var. alpestre Wahlenb.

Equisetum arvense L. var. boreale (Bong.) Rupr.

Equisetum arvense L. var. campestre Wahlenb.

Equisetum arvense L. var. riparium Farw.

Equisetum calderi B. Boivin

Field Horsetail

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionEquisetophytaHorsetails, which date back to the Devonian era
ClassEquisetopsidaHorsetails, spore-bearing plants related to ferns
OrderEquisetalesLiving horsetails (most are extinct)
FamilyEquisetaceaeLiving horsetails
GenusEquisetumLiving horsetails
SpeciesarvenseOf the fields

About plant names...

Horsetails are among the oldest members of the fern family, dating back 300 million years to the Carboniferous Period. They are largely unchanged from when dinosaurs ruled the earth. Field horsetails have high levels of silicon (10%!), and were once used to polish pewter and wood. They are found almost everywhere in North America.

Identification: See Equisetum for a comparison chart.

Edibility: The buds are eaten in Japan, but other portions of the plant and all other species of Equisetum are toxic.

Online References:

Equisetum arvense at Skye Flora

Equisetum arvense on Wikipedia

Equisetum arvense on the USDA Forest Service's Fire Effects Information Database

Equisetum arvense on Plants for a Future, a resource and information centre for edible and otherwise useful plants

Equisetum arvense on Calflora

Equisetum arvense on eFloras

References:

Cobb, Boughton, Farnsworth, Elizabeth & Lowe, Cheryl, Peterson Field Guides: A Field Guide to Ferns and Their Related Families of Northwestern and Central North America, Houghton Mifflin Company, 2005, p. 340

Equisetum arvense (Field Horsetail)

9/18/2016 · Shore Acres Preserve

Equisetum arvense (Field Horsetail)

9/16/2016 · Sieur de Monts Botanical Gardens, Acadia National Park, Bar Harbor, ME

Equisetum arvense (Field Horsetail)

9/18/2016 · Shore Acres Preserve

Equisetum arvense description by Thomas H. Kent, last updated 5 Oct 2016.

© FloraFinder.org. All rights reserved.


 

Equisetum arvense (Field Horsetail)

9/18/2016 · Shore Acres Preserve

Equisetum arvense (Field Horsetail)

4/8/2012 · North Central Railroad Trail, Monkton Rd, Sparks, MD
≈ 22 × 18" (55 × 46 cm) ID is uncertain

Equisetum arvense (Field Horsetail)

8/27/2007 · Umpqua Lighthouse State Park, OR
≈ 4½ × 3' (1.4 × 0.9 m) ID is uncertain

Equisetum arvense (Field Horsetail)

4/2/2012 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 5 × 6" (12 × 15 cm) ID is uncertain

Equisetum arvense (Field Horsetail)

5/21/2009 · Grand Canyon South Rim, AZ
≈ 9 × 6" (23 × 15 cm) ID is uncertain

Equisetum arvense (Field Horsetail)

4/8/2012 · North Central Railroad Trail, Monkton Rd, Sparks, MD
≈ 8 × 9" (20 × 23 cm) ID is uncertain

Range:

About this map...