Xerochlamys undulata

Xerochlamys undulata grows as a shrub with pubescent twigs. Its leaves are bright green above, dull green on the underside. They are elliptic in shape and measure up to 3.5 cm (1 in) long. The tree's flowers are solitary or in inflorescences of two flowers, with yellow to white petals. The roundish to ovoid fruits measure up to 1.1 cm (0.4 in) long with brown seeds.^[3]

Xerochlamys undulata is only found in the central regions of Ihorombe and Atsimo-Andrefana.^[2] Its habitat is on sandstone from 500 metres (1,600 ft) to 1,500 m (5,000 ft) altitude. One population of the plants occurs in Isalo National Park.^[3] The preliminary status of the species is endangered.^[1]