What is "pearsonia"

Pearsonia is an African plant genus of some 12 species belonging to the family Fabaceae and occurring south of the equator with 1 species found on Madagascar. The species are usually herbs or shrublets with woody rootstocks. Leaves are usually sessile and 3-foliolate. The inflorescence is a congested or lax terminal raceme. The name of this genus commemorates the South African botanist Henry Harold Welch Pearson.