ABSTRACT
<p><b>OBJECTIVE</b>To provide theoretical evidences for the identification and selective breeding of different major varieties of Rehmannia glutinosa by comparing their leaf characters such as the shapes, non-glandular hairs and the size and density of stomata.</p><p><b>METHOD</b>The length, width and the ratio of the length to the width of leaves were measured, and the density and length of the non-glandular hair, the density, size and density of the stomata in the epidermis were measured by scanning electron microscope.</p><p><b>RESULT</b>The results showed that there were obvious differences in length, width and the ratio of the length to the width of leaves, the density and length of the non-glandular hair, the density and size of the stomata in the epidermis.</p><p><b>CONCLUSION</b>The morphological characters of the leaves mentioned above may serve as the identification standards of major varieties of R. glutinosa.</p>