Links to genera Ferns and Horsetails (Monilophytes) Clubmosses and Quillworts (Lycophytes)
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| Equisetum telmateia • Great Horsetail
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| Equisetum telmateia Ehrh.; Great Horsetail
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| Mature stem. Oxfordshire, early June. |
 | Upper part of mature plant. Oxfordshire, early June. |
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| Lower part of mature plant. Oxfordshire, early June. |
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Stem of immature plant with developing branches. Oxforshire, late May |
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| Stem of developing plant showing nodes. Oxfordshire, late May |
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Node. Oxfordshire, late May |
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| Top branches, mature plants. Oxford Botanic Gardens, July |
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Developing branches, immature plant. Oxfordshire, late May |
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| Fertile stems with cones. Oxfordshire, April |
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Fertile stems with cones. Oxfordshire, April |
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| Fertile stems with cones; remains of previous year's sterile stems in the background. Oxfordshire, April |
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Fertile stems with cones. Cultivated plants, Oxford Botanic Gardens, May |
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| Cone. Oxfordshire, April |
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Section through stem, immature plant. Oxfordshire, June |
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| Sterile stem emerging. Oxfordshire, April |
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Young plant. Oxfordshire, late May |
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| Immature plant. Oxfordshire, late May |
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Immature plant. Oxfordshire, late May |
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| Oxfordshire, late May |
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Oxfordshire, late May |
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| Oxfordshire, late May |
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Roadside, waste ground. Oxfordshire, June |
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| Oxfordshire, July |
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Yorkshire, late July |
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| Yorkshire, late July |
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Yorkshire, late July |
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