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.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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References in periodicals archive

In some areas Equisetum species grow in saline wetlands.

Biology and functional ecology of Equisetum with emphasis on the giant horsetails

Equisetum is a relic of a different time, a different continent, and a different climate and it grows right here in new-millennium Kane County.

It's 350 million years old, and it's in our backyard: Meet the horsetail

Interspecific and intraspecific variation of phenolics in the genus Equisetum subgenus Equisetum.

Foliar phenolic compounds of ten wild species of Verbenacea as antioxidants and specific chemomarkers/Compostos fenolicos das folhas de dez especies selvagem de Verbenaceae como antioxidantes e quimiomarcadores especificos

Poletto, "Allelopathic potential of Equisetum giganteum L.

Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaea L.) Cultivars on Lettuce (Lactuca sativa) and Weed Plants

Phenolic compounds in field Horsetail (Equisetum arvenseL.) as natural antioxidant.

Study of Variations in the Extraction Yield, Phenolic Contents and Antioxidant Activities of the Bark of F. religiosa as a Function of Extraction Procedure

holosericea (hoary nettle), Stachys rigida (hedge-nettle), Equisetum laevigatum (horse-tail), Achillea millefolium (yarrow) and, on the drier edges, Rumex californicus (willow dock), Potentilla species (cinquefoil), Artemisia dracunculus (tarragon), Luzula comosa (hairy wood-rush), and other grasses and sedges.

Rediscovery of a high-altitude vole, microtus californicus, in baja california, mexico

This increase was supported mainly by the following species: Butomus umbellatus, Polygonum amphibium, Rumex hydrolapathum, Alisma plantago-aquatica, Carex spp., Glyceria maxima, Sagittaria sagittifolia, and Equisetum fluviatile.

Eutrophication-driven spatial and temporal changes in macrophyte diversity in Lake Peipsi/Eutrofeerumisest tingitud ajalistest ja ruumilistest muutustest Peipsi jarve suurtaimede liigirikkuses

EQUISETUM (PALEOZOIC ERA-PRESENT) I've only encountered this plant once, in a marshy patch of land during a walk through the countryside.

Magali Reus

Any display which works to break health taboos must be good, and I found the plantation of dicksonias, cycads, equisetum and ferns exhilarating.

COURT IN THE ACT; My pick of the bunch at the Hampton Court show