Which of the following characteristics describes Purslane?

Purslane is characterized by its succulent leaves and stems, making the second choice the correct one. The succulent nature of Purslane allows it to store water, which is an adaptation that enables it to thrive in dry conditions. This feature is particularly important for its survival in various environments and contributes to its ability to grow vigorously in a wide range of soils.

In contrast, while Purslane does not have heart-shaped leaves, produce small white flowers, or grow upright without creeping, it is essential to note these characteristics pertain to other plants or descriptions that do not apply to Purslane itself. The plant's growth habit is low to the ground and mat-forming, which is distinctive to it compared with upright growth forms found in other species.