Leaf Margin
The margin of a leaf is another name for the structure of the leaf's edge.
There are many different variations, and they can be discovered in this tutorial.
A leaf that is smooth all the way around has an Entire margin
If a leaf has a Crenate margin, then the edge of the leaf has blunt, rounded teeth.
A Dentate margin is when a leaf has triangular, "tooth-like" edges.
A Serrate margin is when a leaf has sharp, "saw-like" teeth.
An easy way to remember this margin is to picture this leaf as a similar to a serrated knife.
When a leaf is Doubly-Serrated, the "saw-like" teeth have even smaller teeth.
A quiz will load up below. If you find that you are not scoring very high, be sure to go back and review.
A leaf with a Serrulate margin is similar to Serrate, but has smaller, evenly-spaced teeth.
If a leaf has an Incised margin, it has deep, irregular teeth.
When a leaf has a Lobed margin, the leaf has deep, rounded edges.
A Sinuate margin describes the sinuous, slighly wavy line along the edge of a leaf.
When a leaf has an Undulate margin, it has extremely wavy lines along the edge.
Before you take the quiz, you might want to review for it using the following activity.
The leaf Margin will be hidden. See if you can name the Margin. Then click the lower lefthand box "term" to see the answer.
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A quiz will load up below. If you find that you are not scoring very high, be sure to go back and review.