Hibiscus brackenridgei subsp. brackenridgei is a sprawling to erect shrub, 1–3 meters tall, and can grow into small trees up to 4 meters tall. The young branches are glabrate to finely stellate pubescent and feature reddish to yellowish, spreading, simple, spinescent hairs with pustular bases. The leaves are simple and alternate, showing variation (heteroblastic) with ovate or 3-5-lobed leaves measuring 5-14 cm in length and 4.5-12 cm in width at the mid-plant level, while the upper plant has bract-like oblanceolate to shallowly lanceolate to ovate 3-5-lobed leaves, ranging from 15-60 mm in length and 8-80 mm in width. The leaves are serrate to dentate, with a nectary present at the base of the midrib on the abaxial surface. Petioles vary in length, being 3-8.5 cm long at mid-plant and 0.8-9 cm long at the upper plant, and are sparse to densely covered in fine stellate pubescence. The flowers are solitary and axillary, sometimes clustered near the apex, with peduncles that elongate during fruiting and are finely stellate-pubescent. It has 7-11 linear to narrowly subulate involucellar bracteoles. The calyx extends in fruit, with lobes that are fine stellate-pubescent or sometimes have shiny, simple hairs. The corolla is yellow with a basal spot on each petal, dorsally sparsely pubescent. The staminal column is red to red-purple or cream to tan-yellow above, with monothecal anthers. The superior ovary leads to a loculicidally-dehiscent capsule, 12-20 mm long and 12-17 mm in diameter, which is glabrous or sparsely pubescent, with seeds that are 4-6 mm long and 3-5 mm wide, angular-reniform, and light to dark brown with honeycombed markings and pectinate scales, sometimes with a fringe of hairs. It is found in dry forests and shrublands, with an elevation range of 0–370 meters.