Schenkia sebaeoides is the only species of the gentian family (Gentianaceae) endemic to the Hawaiian islands. It is an annual herb about 6.0 to 20.0 cm (2.4 to 8.0 in) tall. The leaves are rather fleshy, inversely ovate or elliptic, and 0.7 to 3.2 cm (0.3 to 1.3 in) long by less than 2 cm (1 in)...