In the end, I was inspired by the lovely maple tree in my yard to use stitching to show the different margins and venations of leaves. What resulted were three different "leaves" - each showing a different venation and margin. So, without further ado, here they are:
The Maple Leaf
This leaf, which is my personal favorite, has an undulated margin. Undulated margins are those that are wavy, in appearance, and create shallow "dips" or lobes into the leaf. This particular leaf is not lobed as those dips do not go deeply into the center of the leaf, but are maple leaves can be lobed.
Maple leaves are known for their uniquely palmate venation, meaning that their veins extend out from a point on the bottom of the leaf out to each of the five major extrusions. An easy way to remember this type of venation is by thinking of the pattern as the palm of a hand (palm/palmate) since the veins almost look like the bones of the human hand.
The Pale Jewelweed Leaf
This leaf has a crenate margin. Crenate leaves are those with rounded, non-pointy edges, which differ from triangle-toothed dentate leaves and triangle-tooths-that-point-forward serrate leaves.
This simple pinnate venation is found on many leaves. There is a single major vein which runs lengthwise along the center of the leaf, with smaller veins branching off of it, usually in an alternating pattern. See below for a more clear example.
This is another popular type of margin, known as entire. These plants are easily identifiable as they have smooth edges with no lobes (indentations) or teeth (extrusions).
Plants that are monocots, including grass, have an extremely simple type of venation called parallel venation. Here, several veins run parallel to each other, lengthwise along the leaf.
Parallel Venation ( as seen in my house)
|This particular leaf has very|
dramatic coloration that
shows pinnate venation