To identify black walnut seedlings, one of the most distinctive features to look for is their unique twig-style leaves. These leaves are easily recognizable and are the tree’s defining characteristic during the growing season.
When observing a black walnut tree, you’ll notice that the leaves grow in green twigs that are typically around 1-2 feet (0.30-0.61 meters) long. These twigs sprout from the branches, creating a vibrant display of foliage.
One thing to note is that black walnut trees have compound leaves, which means each leaf is composed of multiple leaflets. Along each side of the twig, you can find anywhere between 15 to 24 leaves sprouting. These leaflets are arranged opposite each other, meaning there will be a leaflet on one side of the twig directly across from another leaflet on the opposite side.
The leaflets themselves are elongated and have a pointed tip, resembling the shape of a feather. They typically measure around 2-4 inches (5-10 centimeters) in length. The edges of the leaflets are serrated, meaning they have small, jagged teeth along the sides. This serration adds to the unique appearance of the leaves and aids in their identification.
Additionally, the color of the leaves can provide further clues when identifying black walnut seedlings. During the growing season, the leaves are a vibrant green shade, which can vary in intensity depending on factors such as sunlight exposure and overall tree health.
It’s worth mentioning that the twigs and leaves of black walnut trees have a distinct odor when crushed or bruised. Some describe it as a slightly pungent or earthy smell. This characteristic scent can also help confirm the identification of a black walnut seedling.
When identifying black walnut seedlings, it’s essential to consider the overall growth habit of the tree as well. Black walnut trees typically have a tall, straight trunk with a broad, spreading canopy. They are known for their large size and can reach heights of up to 100 feet (30 meters) or more.
In conclusion, to identify black walnut seedlings, look for their distinctive twig-style leaves. These leaves grow in green twigs that sprout from the branches and can have 15-24 leaflets on each side. The leaflets are elongated, serrated, and have a pointed tip. Additionally, consider the overall growth habit of the tree and the unique odor of the twigs and leaves when crushed.
