The stalk of a flower at its base is known as:

The stalk of a flower is known as the pedicel. It is the small stem-like structure that supports the flower and connects it to the main plant, such as a branch or the stem. This part of the flower plays an important role in holding the flower upright and providing it with nutrients from the plant. The stalk of the flower is known as the pedicel when the flower is not directly attached to the main plant body but is supported by this slender structure.

Flowers that grow on individual stalks often have visible pedicels, making it easier to identify this part. Without the stalk of the flower, known as the pedicel, the flower would not have the support or the connection it needs to thrive.