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Equisetum telmateia Giant horsetail (1 Page of 5) The Equisetum telmateia plant species is found in Britain. It is a member of the Equisetaceae family. Common gardeners may know the plant as Giant horsetail. Some home gardeners know the variety as E. maximum. auct. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Equisetum telmateia Common Name: Giant horsetail Family: Equisetaceae Author: Ehrh. Known Hazards: Large quantities of the plant can be toxic. This is because it contains the enzyme thiaminase[172], a substance that can rob the body of the vitamin B complex[65]. In small quantities this enzyme will do no harm to people eating an adequate diet that is rich in vitamin B, though large quantities can cause severe health problems. The enzyme is destroyed by heat or thorough drying, so cooking the plant will remove the thiaminase[172].
The plant also contains equisetic acid - see the notes on medicinal uses for more information[213]. Mature Height: 2 Mature Width: Habitat: Damp shady banks etc, to 350 metres[17].
Cultivation Notes: Prefers a moist soil with a pH between 6.5 and 7.5[200].
Plants are hardy to about -30°c[200].
Plants have a deep and penetrating root system and can be invasive. If grown in the garden they are best kept in bounds by planting them in a large container which can be sunk into the ground[200].
For further Equisetum telmateia gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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