Lepidium orbiculare (??naunau) is a small, perennial, many-branched shrub in the mustard family (Brassicaceae) (St. John 1981, pp. 371–373; Wagner et al. 1999, p. 409, Wagner 2020, unpubl. data). It is more than 12 inches (in) (33 centimeter (cm)) tall with glabrous young shoots; leafy branchlets...