Melhania polygama is a plant in the mallow family Malvaceae, native to South Africa.
Melhania polygama grows as a shrub about tall, with numerous stems. The leaves are stellate tomentose and measure up to long. Inflorescences measure up to long, are typically one to three-flowered and feature yellow petals. Uniquely within the genus Melhania, the flowers are polygamous.
Melhania polygama is known only from HluhluweâÂÂImfolozi Park (formerly Umfolozi Game Reserve) in KwaZulu-Natal. Its habitat is on grassy hill slopes.