Hoya anulata is a species of flowering plant in the Apocynaceae or dogbane family and is endemic to Cape York and parts of Southeast Asia. It is a epiphytic or lithophytic vine with fleshy, egg-shaped leaves, fleshy pale pink and white flowers, and spindle-shaped follicles.
Hoya anulata is a vine that reaches up to long and has fleshy, egg-shaped leaves, sometimes with the narrower end towards the base, long and wide, on a petiole long. The flowers are arranged in umbels in diameter of about 14 flowers on a peduncle about long, each flower on a pedicel long. The petals are wheel shaped, fleshy pale pink to white with triangular lobes long and about wide. The corona is pale pink and oblong with lobes about long and wide. Flowering has been observed in February, April and July, and the fruit is a spindle-shaped follicle long and long.[1] [2]
Hoya anulata was first formally described in 1905 by Rudolf Schlechter in the Journal of the Linnean Society, Botany, from specimens he collected in 1902 on the upper Nuru River at altitudes of about .[3] [4]
This species of Hoya grows as an epiphyte or lithophyte in rainforest and vine forest on Cape York, in Papuasia and on the Maluku Islands in Indonesia.
Hoya anulata is listed as "near threatened" under the Queensland Government Nature Conservation Act 1992.[5]