Melhania didyma is a plant in the mallow family Malvaceae, native to southern Africa.
Melhania didyma grows as a low bushy shrub 20cm–60cmcm (10inches–20inchescm) tall, sometimes to 10NaN0 tall. It branches from near the base, with a woody main stem. The leaves are pubescent above, tomentose below and measure up to 10cm (00inches) long. Inflorescences measuring up to 5cm (02inches) long are typically two-flowered and feature yellow petals. The species resembles Melhania forbesii in the bracts of the epicalyx, but differs in upper leaf surface.
Melhania didyma is native to Botswana, South Africa (Cape Provinces, KwaZulu-Natal, Northern Provinces) and Eswatini. Its habitat includes thornveld, grassy slopes or forest margins. The species is often found by rivers.