Cupuaçu trees usually are between 5 and 15 meters (16 to 50 feet) tall. Some trees can reach 20 meters (65 feet). They have brown bark. Their leaves are 25–35 cm (10–14 in) long and 6–10 cm (2–4 in) across. These leaves have 9 or 10 pairs of veins. As they mature, their leaves change colour from pink-tinted to green. Eventually they begin bearing fruit. Cupuaçu fruits are oblong, brown, and fuzzy, 20 cm (8 in) long, 1–2 kg (2–4 lb) in weight, and covered with a thick (4–7 mm), hard exocarp.