A photo of a tall, green plant called Horsetail

Dr. Lew Feldman, Garden Director Horsetail (Equisetum telmateia) An invasive weed, but also useful in many ways! Horsetail (Equisetum telmateia) is found throughout the Garden, generally as an invasive, aggressive weed. But what truly distinguishes horsetail is that it is rich in the mineral silicon (silica), which contributes to cell wall rigidity and to the…

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