Keywords
biological, biology, botanical, botany, cambium, canals, cork, epidermis, flora, light micrograph, light microscope, lm, nature, one year old, phellogen, phloem, pine tree, pins sp, pith, plant, primary pine, resin canal, section, sectioned, stem, tree, vascular cylinder, white background, xylem, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u24920846