Authors: C. Stace, R. van der Meijden (ed.) & I. de Kort (ed.)
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Scientific name:

Equisetum hyemale

Vernacular name:

Horsetail, Rough


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Rough Horsetail

Scientific name: Equisetum hyemale L.

Diagnostic features
Stems to 1m, evergreen, simple, rough to touch, with 10-30 2-angled ridges.
Cones on normal vegetative shoots, apiculate at apex.

Chromosome number: 2n=216.

Habitat
Native; in ditches and on river- or stream-banks, often in dense vegetation.

Distribution
Scattered throughout most of Britain and Ireland, decreasing.

This species is keyed out on Page 8 of the Text Key.

Hybrids
- See Equisetum moorei(x) Newman (= Equisetum hyemale x Equisetum ramosissimum).
- See Equisetum trachyodon(x) A. Braun (= Equisetum hyemale x Equisetum variegatum)

Equisetum hyemale (Horsetail, Rough)
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