Stephen Dalton / Horsetail (Equisetum palustre) young shoots Sussex, UK
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Nick Upton / Marsh horsetail (Equisteum palustre) with spore cones growing on marshy ground around a pond, Cornwall, UK, April.
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Chris Mattison / Marsh horsetail (Equisetum palustre) fertile frond with cone. Derbyshire, England, UK, July.
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Nick Upton / Marsh horsetail (Equisetum palustre) with mature spore cone in a marshy meadow, Kenfig National Nature Reserve, Glamorgan, Wales, UK, May.
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Linda Pitkin / Marsh horsetail (Equisetum palustre) Papercourt Marshes Nature Reserve (SWT), Surrey, England, May.
