Southern Adderstongue Small 97×320 Medium 194×640 Large 310×1024 Download Tiff Original 726×2400 | (240.9 KB) Description "Adder's tongue fern (Ophioglossum vulgatum L.). R, runner or stolon." -Gager, 1916 Keywords Adder's tongue fern, Botany, leaves, Ophioglossum vulgatum, plant, plant runner, roots, southern adderstongue plant, stolon Galleries Ferns Source: C. Stuart Gager Fundamentals of Botany (Philadelphia, PA: P. Blakiston, )
