Nothocestrum breviflorum, commonly known as smallflower aiea, is a species of tree in the nightshade family, Solanaceae, that is endemic to the island of Hawaii. It inhabits dry and mixed mesic forests at elevations of . These forests are dominated by à Âhia lehua (Metrosideros polymorpha) and koa (Acacia koa) or lama (Diospyros sandwicensis), while plants associated with smallflower aiea include wiliwili (Erythrina sandwicensis) and uhiuhi (Caesalpinia kavaiensis). N. breviflorum reaches a height of . It is threatened by habitat loss. It is federally listed as an endangered species of the United States. There are fewer than 50 individuals remaining.