The leaves of prickly sida are ovate to lanceolate in shape, typically measuring 1-3 inches (2.5-7.5 cm) in length. They are a vibrant green color, with a slightly rough texture on the upper surface. The vein pattern is pinnate, with a prominent central vein and lateral veins spreading outward. A distinctive feature is a blunt spine located just below the base of the petioles on some lower leaves, aiding in identification. Margins are finely serrated.

The flowers of prickly sida are small and delicate, each emerging on a stalk approximately 1/2 inch (1.3 cm) long. Exhibiting the classic features of the Malvaceae family, these flowers include a column of stamens that tightly encircles the style. The petals are modest in size, typically arranged symmetrically, and the overall floral structure is essential for precise identification. The blooming period, scent, and detailed coloration are characteristic of the species, making these flowers notable for both their beauty and botanical interest.

The stems of prickly sida are distinctively covered with fine white hairs, giving them a somewhat silvery appearance. They are erect and can grow up to approximately 2 feet (60 cm) in height. The stem texture is slightly rough due to the dense hairs. The stems exhibit an alternate leaf arrangement and have axillary flowers emerging from the leaf nodes. Their branching pattern is sparse, which makes the axillary flowers more pronounced. The stems' color tends to be green, darkening as they mature.

The fruit of prickly sida manifests as a unique structure, comprising a reddish-brown circular seedpod which neatly segments into five distinct parts, resembling a star when divided. Each part harbors one seed, delicately encased and ready for dispersal. Upon maturity, the fruit, which mimics a capsule in form and function, reaches a diameter typically less than an inch (2.54 cm), offering a visual clue to its identification. Its textured exterior and segmented nature are pivotal characteristics, setting it apart in the plant kingdom.