ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Cannabis plant stem. Polarised light micrograph of a cross section through a stem of the hemp plant (Cannabis sativa). The main layers seen here are the epidermis (outer layer, lower left), followed by thin layers of parenchyma, phloem, cambium, and xylem. Magnification: x8.
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