Scaevola amblyanthera is usually a hairy subshrub that typically grows to a height of . Its leaves are sessile, narrowly elliptic to egg-shaped with the narrower end towards the base, usually with toothed edges, long and wide. The flowers are borne in spikes up to long with leaf-like
bracts and smaller egg-shaped, elliptic or linear
bracteoles long. The
sepals are Δ-shaped, about long and joined at the base. The petals are mauve, pale pink or white, long, covered with soft hairs and densely bearded inside with wings about wide. The
ovary has two
locules with white or purplish hairs at the base. Flowering occurs from March to October, and the fruit is oval, hairy and up to long. ==Taxonomy==