Links to genera Ferns and Horsetails (Monilophytes) Clubmosses and Quillworts (Lycophytes)
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| Equisetum fluviatile • Water Horsetail
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| Equisetum fluviatile L.; Water Horsetail
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| Single stem, Oxfordshire, August |
 | Single stem, detail, Oxfordshire, August |
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| Main stem branch junction. Oxfordshire, August |
 | Main stem branch junction. Oxfordshire, August |
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| Main stem node. Oxfordshire, August |
 | Main stem node. Oxfordshire, August |
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| Detail of branches showing nodes. Oxfordshire, August |
 | Detail of branches showing nodes. Oxfordshire, August |
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| Cone. North Wales, May |
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Cones. North Wales, May |
 | | Section through main stem. Oxfordshire, August |
 | North Wales, May |
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| Forming a distinct layer on the margins of a pond, Oxfordshire, July |
 | Oxfordshire, July |
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| Oxfordshire, July |
 | Well-branched plants growing in partial shade. North Yorkshire, late July |
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| Young plant with developing branches. Hampshire, May |
 | Young plant with developing branches. Hampshire, May |
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