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Equisetum palustre

Equisetum palustre L.

Equisetum palustre L. var. americanum Victorin

Equisetum palustre L. var. simplicissimum A. Braun

Marsh Horsetail

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
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
SpeciespalustreGrowing in marshes

About plant names...

Marsh horsetails are smaller and more delicate looking than most other horsetails.

Identification: Plants are usually less than 24" (60 cm) tall. Branches are so thin that they appear soft and needle-like. In some cases the branches are sparse or not present at all. Cones are about 1" (2.5 cm) long. See Equisetum for a comparison chart.

Equisetum palustre (Marsh Horsetail)

From Lindman, Carl Axel Magnus, Bilder ur Nordens Flora, 1926

Online References:

Equisetum palustre in The Equisetum Species (Horsetails) of the British Isles

Equisetum palustre on Earl J.S. Rook's Flora, Fauna, Earth, and Sky ... The Natural History of the Northwoods

Equisetum palustre on CalPhotos

Equisetum palustre at the Lady Bird Johnson Wildflower Center

Equisetum palustre at the Central Yukon Species Inventory Project

Equisetum palustre on Wikipedia

Equisetum palustre at the University of Wisconsin-Green Bay Cofrin Center for Biodiversity

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

Equisetum palustre 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. 348.

Equisetum palustre description by Thomas H. Kent, last updated 16 Aug 2013.

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Equisetum palustre (Marsh Horsetail)

5/23/2009 · West Fork of Oak Creek Trail, AZ
≈ 4½ × 3' (1.4 × 0.9 m) ID is uncertain

Range:

About this map...