Kadua laxiflora, a member of the Rubiaceae (coffee) family, has smooth, usually erect stems 30 to 60 cm (1 to 2 ft) long that are woody at the base and four-angled or -winged. The leaves are opposite, thin in texture, elliptic to sometimes lance-shaped, and 8 to 18 cm (3 to 7 in) long and 2.5 to 6....