Equisetum

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Related to Equisetaceae: Equisetales

Equisetum

any pteridophyte plant of the genus Equisetum, comprising the horsetails. The plant is herbaceous, has rhizomes and a vertical stem with whorls of scale leaves, and is often found growing in water and damp conditions. It is the last living representative of the order Equisetales, members of which, during the time of the dinosaurs, grew as high as trees and were probably a major food source.

Equisetum

genus of the fern ally family Equisetaceae. These plants have a high content of thiaminase, and horses which eat a lot of them, usually in their hay, develop thiamin deficiency. This is characterized by incoordination, falling, bradycardia and severe cardiac irregularity. Response to treatment with thiamin is rapid and complete.
Includes E. arvense, E. hyemale, E. laevigatum, E. limosum, E. palustre, E. ramosissimum. Called also horsetails, foxtails, marestails.
References in periodicals archive ?
Family Name (Latin and Common): Equisetaceae, the Horsetail family
Castaneda Klotzsch PTERIDOPHYTA EQUISETACEAE 117 Equisetum bogotense Kunth J.
Pinco-pinco Equisetaceae Equisetum bogotense Kunth Cola de caballo, Caballochupa Erythroxylaceae Erythroxylum coca Lam.
7]) Ericaceae Arctostaphylos uva-ursi 1 (2) 1 (40) (Linnaeus) Sprengel Equisetaceae Equisetum hyemale Linnaeus 5 (4.
Si presence has proven to be of importance in some unicellular organisms such as diatoms and in other multicellular sea living organisms such as sponges, in addition to some Equisetaceae and other plants of relevance to man, such as rice, sugar cane and pumpkin.
Stems hollow, jointed, and ridged; leaves inconspicuous and sheathed around stem; sporangia in cone-like strobili terminating stem Equisetaceae
orbiculatum h ms, pj Hl N Equisetaceae Equisetum bogotense Kunth h ms Hl N Isoetaceae Isoetes sp.
Las division Pteridophyta estuvo representada por 6 familias: Adiantaceae, Aspleniaceae, Dryopteridaceae, Equisetaceae, Pteridaceae y Salviniaceae.