Field horsetail (Equisetum arvense) cone

Field horsetail (Equisetum arvense) cone

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Credit: CLAUDE NURIDSANY & MARIE PERENNOU/SCIENCE PHOTO LIBRARY

Caption: Field horsetail (Equisetum arvense) cone. This is a fertile stem, bearing a structure called the cone or strobilus. The cone releases spores (containing the male reproductive cells), and are part of the sexual reproduction of this plant. Horsetails normally use asexual reproduction using rhizomes (underground stems).

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Keywords: biological, biology, botanical, botany, common horsetail, cone, equisetum arvense, fertile stem, field horsetail, flora, living fossil, male, nature, plant, sexual reproduction, sphenopsid, sphenopsids, spore production, strobili, strobilus

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