This member of the Pedaliaceae family was given this name by Jean-Henri Humbert in 1962. It is found in central and south-western Madagascar, growing in a well drained sandy soil with quite some water and lots of sun. The caudex can grow from fifteen to 25 centimetres in diameter, the entire plant to 250 centimetres in height. The flowers are golden yellow. The genera is named for the Uncarina tribe of Madagascar. The species is named after Jacques Désiré Leandri, 1903–1982, a French botanist and mycologist, who collected the first specimen. The flowers by Charles Rakotovao, MBG-Madagascar. The fruits by Fortunat Rakotoarivony, Tropicos.org.

