Equisetum hyemale 3, Scouring Rush Horsetail, Howard County, Md, GFG, Helen Lowe Metzman https://www.rawpixel.com/image/8754929/photo-image-plant-tree-public-domainFree Image from public domain licenseEquisetum hyemale 2, Scouring Rush Horsetail, Howard County, Md, GFG, Helen Lowe Metzman https://www.rawpixel.com/image/8755196/photo-image-public-domain-researchFree Image from public domain license