Syn.: Hoya suaveolens Miq., Otostemma lacunosum (Blume) Blume
Family: Apocynaceae Juss.; Asclepiadaceae R. Br.
Hoya lacunosa
Distribution: Indonesia (Borneo, Java, Sumatra), India, southern China, Malaysia, Singapore, Thailand.
Ecology: Epiphytic, climbing plant found in tropical forests with wet and dry periods.
Description: Perennial subshrub, stems thin, glabrous, up to 1 m long, rooting at nodes for anchor. Leaves opposite, ovate to lanceolate, 3–7 cm long, 2.5–3 cm wide, fleshy, glabrous, petiole 4 mm long. Inflorescence 1–30 flowered, umbelloid cyme, pendent, peduncle 5 cm long, rigid. Flowers heavily scented, pedicels 1–2.5 cm long, sepals minute, obtuse; corolla button-shaped, about 8 mm across, lobes triangular, strongly revolute, white to pinkish, hairy; staminal corona lobes elliptic, purplish at base; style head conical; pollinia elongate-falcate, thick, broadly winged. Fruit is a dry pod (follicle), 5–6 cm long and 5 mm thick, smooth.
Note: Quite a few species of Hoya are used as house plants. They are shade tolerant, however they bloom only when they receive sufficient light. Most of them are very fragrant at night. There are over 300 species described, but not more than 200 may be recognized. No generic revision has ever been published.
Hoya lacunosaHoya lacunosa
Hoya lacunosa
Hoya lacunosa
These images were taken in culture.