Brosimum guianense aka Snakewood

Brosimum guianense is a large tree in the mulberry family, Moraceae. Its names include bastard breadnut, leopardwood, and letterwood. Its native range runs from southern Mexico through tropical America. It grows in lowland forests that do not flood. It often occurs in forests that regrow after disturbance. Its habitats range from dry sites to very humid ones. It reaches elevations of about 3,280 feet [1,000 metres].

This deciduous tree sheds its leaves and grows fast. Published size guides give about 82 feet [25 metres] in height. PFAF gives a spread of 66 feet [20 metres]. Large wild trees can reach 131 feet [40 metres]. The crown is dense and longer than it is wide. The straight, round trunk may lack branches for 39 feet [12 metres]. Its width can reach 1.3–2.3 feet [0.4–0.7 metres]. Some trees have prop roots at the base; others lack them. The bark yields a thick white latex with a sticky feel.

Flowers and fruit can appear at any time of year. PFAF reports that people eat the fruit pulp raw. Useful Tropical Plants, however, lists no known food use. These sources therefore differ on its value as food. Both report no known hazards, but that does not prove safety. The latex is described as caustic in accounts of medicinal use. Traditional uses include warmed, crushed bark for pain relief. Other records describe latex remedies for worms, asthma, and colds. These reports document past uses, not proof of safe treatment.

The tree suits warm, lowland tropical conditions. PFAF lists USDA zones 10–12. It grows in full sun or part shade. It accepts sandy, loamy, and clay soils. Its listed pH range spans mild acidity to mild alkalinity. Soil may be dry or moist, and established plants tolerate some drought. Young trees tend to settle in well and grow fast. Growers can raise it from fresh seed or root cuttings. Seeds often sprout within a few weeks of sowing.

Its large crown and broad spread demand ample garden space. Its main recorded use is valuable wood from wild trees. The timber is hard, heavy, strong, and durable. It also resists termites and serves specialist uses, including violin bows. Commercial users seek the heartwood, which forms slowly. Even a thick trunk may hold little usable heartwood. PFAF lists no weed concern for this species. The supplied sources give no specific pest or disease problems.