Description from Flora of China
Hoya obovata Decaisne var. kerrii (Craib) Costantin.
Stems stout, to 1 m, glabrous. Petiole 0.5-2 cm, robust; leaf blade obovate to orbicular, 4-6 × 5-6 cm, base rounded to broadly cuneate, margin revolute, apex retuse, sinus to 1 cm wide, glabrous; lateral veins obscure. Pseudumbels 4-5 cm in diam.; peduncle 2-3 cm. Pedicel 1.3-1.8 cm, slender, puberulent. Sepals ca. 2.5 mm, puberulent. Corolla papillate-puberulent, reflexed; lobes ovate-triangular, 4-5 × ca. 4 mm. Corona lobes reddish, furrowed on back, outer angle rounded, apical part concave, ca. 2.5 mm. 2n = 22.
The leaves are used for the treatment of swellings and pyoderma.
Cultivated in S Guangdong [Laos, Malaysia, Thailand, Vietnam]