This Lord Howe Island endemic tree is related to the Hawaiian Mamane (Sophora chrysophylla) and other insular endemics in the Edwardsia section of Sophora (Fabaceae). This one grew from a seed from Lord Howe Island and flowers in a tub in my yard most years in January/February. Image I10-5843
A woody vine native to the Neotropics, but planted more widely as forage and for nitrogen fixation. Photo is of a weed in Copalita Park, southwestern Mexico.