This tree is one of two species which yield the valuable Lignum Vitae wood. The other species is Guaiacum officinale. This small tree is slow growing, reaching about 7 m in height with a trunk diameter of 50 cm. The tree is essentially evergreen throughout most of its native range. The leaves are compound, 2.5 to 3 cm in length, and 2 cm wide. The blue flowers have five petals which yield a yellow fruit with red flesh and black seeds.