Which of the following is NOT an example of line flowers?

Line flowers are characterized by their tall, linear growth and are typically used to create height and structure in floral arrangements. They are often distinguished by their elongated stems and branching petals, which help to establish a vertical line in designs.

The dahlia does not fit this classification. It is a bushy flower with a full, round shape and a wide variety of forms, which does not emphasize verticality or linearity. Instead, dahlias are best known for their density and bushiness, making them suitable for filling gaps in arrangements or creating more rounded, compact designs.

In contrast, flowers like gladiolus, snapdragons, and delphinium embody the qualities of line flowers, as they all possess tall, upright stems that contribute height and elegance to floral compositions. This distinction defines the natural attributes of each flower and clarifies why the dahlia is not an example of a line flower.