Schiedea diffusa subsp. diffusa, a member of Caryophyllaceae (pink family), is a perennial vine that is usually found sprawling over vegetation in wet to very wet forests. The vines can reach up to 10 m (33 ft) long, but are usually 3 to 6 m (10 to 20 ft) in length. Overall, the plant is a light green to yellowish green with purple suffused along portions of the stems and leaves. The leaves are usually 4 to 12 cm (1.5 to 5 in) long and 1.5 to 4 cm (0.5 to 1.5 in) wide on stalks that reach around 0.2 to 0.7 cm (0.07 to 0.2 in). Usually only the midvein of the leaf is evident. Schiedea diffusa subsp. diffusa has spreading (diffuse) inflorescences that reach 10 to 50 cm (4 to 20 in) in length and contain around 20 to 90 flowers. The flowers are hermaphroditic and chasmogamous (open) with a broad and flat nectary. The seeds of this species are 1 mm (0.04 in).