Hoya wayetii is a perennial , epiphytic plant with twisting, branched shoots that can also hang. The thread-like shoots are up to 2 mm in diameter and bare. They are heavily leafed and become somewhat lignified with age. They have small, short, somewhat thickened adventitious roots directly below the somewhat thickened nodes. on. The internodes are 3 to 5 cm long. The opposite, succulent leaves are short-stalked, the round and bare, dark green leaf stalks are 0.5 to 1.5 cm long in cross-section. The narrow-lanceolate leaf bladesare 5 to 14.5 cm long and 1.5 to 2.7 cm wide. The top and bottom are bare, the top is flat to slightly convex, the bottom is triangular or the leaf is flat V-shaped in cross section. The midrib stands out strongly. Otherwise, however, no leaf veins can be seen. The top is dark green with slightly darker edges. The underside is a little lighter. The base of the leaf blade is wedge-shaped, the apex tapers to a point. The umbel-shaped inflorescence consists of 20 to 30 flowers (12 to 18 flowers  ) and hangs. The inflorescence stalk is bare, it is up to 7 cm long and is round in cross section. The flower stalks are bare and of different lengths, so that the flowers do not form a uniform surface in the inflorescence. They are curved, 1 to 2 cm long and up to 11 mm thick. The light green sepals are 1.7 mm long and 1.3 mm wide at the base. The apex is rounded. They have cilia on the edges. The inside is bare, the outside granular.