Twig Identification and Characteristics

This video tutorial focuses on twig identification, particularly in winter when leaves are absent. It covers the drawing and labeling of twig features such as terminal buds, leaf scars, and lenticles. The tutorial explains different types of leaf scars and bud arrangements, including heart, triangular, and round shapes. It also provides detailed instructions for an activity using index cards and a dichotomous key to identify twigs from various trees.

Why is twig identification particularly important during winter?

• Because twigs are easier to see in winter.

• Because leaves are not present to identify trees.

• Because twigs are more colorful in winter.

• Because twigs grow faster in winter.

What is the terminal bud on a twig?

• A bud located at the side of the twig.

• A bud located in the middle of the twig.

• A bud located at the base of the twig.

• A bud located at the very tip of the twig.

What are lenticels on a twig?

• Small dots on the twig surface.

• Large scars on the twig.

• The main stem of the twig.

• The leaves of the twig.

Which of the following is NOT a type of leaf scar?

• Round

• Square

• Triangular

• Heart-shaped

What does an opposite bud arrangement mean?

• Buds are staggered along the twig.

• Buds are directly across from each other.

• Buds are in a circular pattern.

• Buds are at the base of the twig.

How many twigs should be drawn on each index card?

• Four

• Two

• One

• Three

What is the first step in using a dichotomous key for twig identification?

• Measure the length of the twig.

• Identify if the buds are alternate or opposite.

• Check if the leaf scar encircles the bud.

• Determine if the twig has thorns.

What should be included in the classification characteristics?

• The color of the twig.

• The age of the twig.

• The size of the twig.

• The steps taken to identify the twig.

How many total index card boxes are needed for the activity?

• Five

• Six

• Seven

• Eight

What is the purpose of paraphrasing the classification characteristics?

• To make the notes longer.

• To make the notes more colorful.

• To make the notes more concise and understandable.

• To make the notes more complex.