Kadua cordata ssp. remyi, a member of the Rubiaceae (coffee) family, is a few branched subshrub with stems 60 to 600 cm (24 to 240 in) long, that are weakly erect or climbing and somewhat square, smooth, and glaucous (with a fine waxy coating that imparts a whitish or bluish hue to the stem). The leaves are opposite, glossy, thin or somewhat thickened, egg-shaped or with a heart-shaped base and a very pointed tip, and 3 to 16 cm (1.2 to 6 in) long. The margins of the leaves curl under. The veins of the leaves are impressed on the upper surface with hairs and raised on the lower surface. The lower surface of the leaves are usually glaucous. The leaf stalks are up to 1 cm (0.4 in) long, slightly fused to the stem, and bear stipules (appendages on the base of the leaf stalks). The inflorescence stalks are 2 to 15 mm (0.1 to 0.6 in) long, square, and usually glaucous. The flowers have either functional male and female parts or only functional female parts. Leaflike bracts are found at the base of each flower. The corolla (flower petals) is cream-colored, fleshy, usually glaucous, trumpet-shaped, with a tube 6 to 17 mm (0.2 to 0.7 in) long and lobes 1.5 to 10 mm (0.06 to 0.4 in) long when the anthers (pollen-bearing stamens) are ripe. The stamens reach only to 1 to 3 mm (0.04 to 0.1 in) below the sinuses of the corolla lobes. The styles (pistil stalks) are woolly on the lower portions, and are two to four lobed. The fruits are top shaped to sub-globose capsules 2 to 4 mm (0.1 to 0.2 in) long and 3 to 7 mm (0.1 to 0.3 in) in diameter. The fruits break open along the walls of the cells within the fruit. Seeds are dark brown, irregularly wedge-shaped and angled, and darkly granular.