Stenogyne kanehoana is a climbing vine in the mint family (Lamiaceae) with stems weakly four-angled, hairy, and 1 to 2 m (3 to 6 ft) long. The leaves are oppositely arranged and are narrowly ovate to oblong-ovate, thin but densely hairy, about 10 cm (4 in) long and 3.5 cm (1.5 in) wide. The flowers are in clusters of 3 to 6 per leaf axil, the petals are fused into a strongly curved tube about 2.7 to 4.2 cm (1 to 1.5 in) long, white or pale yellow with short pink corolla lobes. The fruit consists of 4 fleshy black nutlets. Stenogyne kanehoana is distinguished from the only other member of the genus occurring on Oahu, S. kaalae, primarily by the size and color of its flowers. The flowers of S. kanehoana are large, white to yellow, and tipped in pink, while those of S. kaalae are small and deep purple