[2][3] The plant's specific epithet retusa refers to the shape, with retuse meaning it has a rounded leaf apex with a notch.

It grows in a trailing habit and the foliage is succulent.

[4] Hoya retusa grows in clumps with long stems hanging downwards.

The flowers are fragrant, star-shaped having creamy petals and red corona at center.

[5] Media related to Hoya retusa at Wikimedia Commons