The pumpkin flower is soft yellow and large, roughly 10 mm. (4 inches) across. It blooms for only a brief period, less than a day, then closes up to produce the fruit.

Here is a pumpkin flower with a few common black ants on it to give you a sense of scale.

The pumpkin squash begins as a small green ball (here a mere 5 mm or 2 inches across). The dark stripes will become the indentations that are characteristic of the adult squash.

The pumpkin plant with its broad leaves and its dominance of the hill upon which it grows.

One of the large broad leaves of the pumpkin plant. The leaves vary from 8 to 12 inches (20 cm to 30 cm) across and are multi-lobed with distinct veins.

The stems of the pumpkin plant resemble those of a vine. They wander and produce tendrils for attaching to surrounding foliage.