9-6. You identify plants, other than by memorizing particular varieties through familiarity, by using such factors as leaf shape and margin, leaf arrangements, and root structure.
9-7. The basic leaf margins (Figure 9-1) are toothed, lobed, and toothless or smooth.
Figure 9-1. Leaf Margins
9-8. These leaves may be lance-shaped, elliptical, egg-shaped, oblong, wedge-shaped, triangular, long-pointed, or top-shaped (Figure 9-2).
Figure 9-2. Leaf Shapes
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