Leaf Shape
This week, we continue exploring plant identification with the shape of a leaf as an identifying factor. It is important to note that leaf shape may be influenced by environmental conditions damaging the leaf as the leaf is unfurling. I recommend comparing multiple leaves from the same plant and discarding any ones with an unusual shape. The leaf shape includes the apex or top of the leaf, the base of the leaf, and everything in between. Leaf shapes can range from linear (leaves narrow, four times longer than the width and have the same width) to cordate (heart- shaped) to peltate (leaves rounded with petiole attached under the leaf base). There are hundreds of different leaf shapes that have been identified by botanists but the photo above illustrates some of the common ones.
