Strobilanthes sunhangii (Acanthaceae), a new species from Tibet, China

A new species of Acanthaceae, Strobilanthes sunhangii, is described from Medog County, Tibet, China. Morphologically, the new species is closely similar to S. medogensis and S. divaricata, but S. sunhangii differs in having glabrous stems, longer spikes, glabrous rachis, double curved corolla and glabrous calyx, different stamens and style.