Fertile and Sterile Horsetail

Fertile and Sterile Horsetail

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Credit: STEPHEN P. PARKER/SCIENCE PHOTO LIBRARY

Caption: Giant horsetail (Equisetum telmateia) with fertile cones and sterile stalks in Contra Costa County, California.

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Keywords: botany, equisetaceae, equisetophyta, equisetum, equisetum telmateia, fertile stem, flora, giant horsetail, horsetail, horsetails, nature, plant, plants, reproductive structure, spore-producing cone, stalk, sterile fronds, strobili, strobilus, vertical

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