Melicope saint-johnii, a member of the Rutaceae (rue) family, is a slender tree 3 to 6 m (10 to 20 ft) tall. Opposite leaves occasionally occur in threes on young lateral branches. The leaves, 6 to 16 cm (2.4 to 6.3 in) long and 3 to 8.5 cm (1.2 to 3.3 in) wide, are narrowly to broadly elliptic,...