Pseudanthus ovalifolius is a spreading to compact, wiry monoecious shrub that typically grows to a height of and has
glabrous branchlets. Its leaves are oval, elliptic or more or less round, long and wide on a
petiole long with reddish-brown, broadly triangular
stipules long at the base. The flowers are arranged singly in leaf axils, but sometimes appear clustered on the ends of branches with egg-shaped
bracts long at the base. Male flowers are on a
pedicel long, the 6
tepals narrowly oblong to oblong and whitish, long and wide and there are 6
stamens. Female flowers are
sessile, the 5 or 6 tepals reddish-brown and creamy white, long and wide. Flowering has been observed from February to November, and the fruit is a green, oval
capsule long. ==Taxonomy and naming==