Kadua parvula, a member of the Rubiaceae (coffee) family, is a small, many-branched shrub, either upright or sprawling, with stems usually no more than 30 cm (1 ft) in length. Leaves are leathery in texture, overlapping, 1 to 4 cm (0.4 to 1.6 in) long by 7 to 23 mm (0.3 to 0.9 in) wide and are uniform in size along the stem. Flowers are grouped in small clusters and, when combined with clusters on adjacent stems, give the appearance of a large inflorescence. Sepals are fused into a tube and flare into four or five lobes 1 to 4 mm in (0.04 to 0.18) long by 1 to 2 mm (0.04 to 0.08) wide, often with different sizes on the same plant. The lobes enlarge up to 5.5 mm (0.2 in) long as the fruit matures. The white petals are fused into a funnel-shaped tube 8 toll mm (0.3 to 0.4 in) long with four or five purplish pink-tipped lobes, each about 5 to 6 mm (0.2 in) long. The capsule is almost globe-shaped and about 4 mm (0.2 in) in diameter. Seeds are angled and brown.