What is Acrocomia aculeata

Acrocomia aculeata is a species of palm native to tropical regions of the Americas, from southern Mexico and the Caribbean south to Paraguay and northern Argentina. Common names include Grugru Palm, Macaúba Palm, Coyol Palm, and Macaw Palm; synonyms include A. lasiospatha, A. sclerocarpa, A. totai, and A. vinifera.
It grows to 15-20 m tall, with a trunk up to 50 cm diameter, characterized by numerous slender, black, viciously sharp 10 cm long spines jutting out from the trunk. The leaves are pinnate, 3-4 m long, with numerous slender, 50-100 cm long leaflets. Petioles of the leaves are also covered with spines. The flowers are small, produced on a large branched inflorescence 1.5 m long. The fruit is a yellowish-green drupe 2.5-5 cm in diameter, containing a single, dark brown, nut-like seed 2.5-5 cm diameter, which is very tough to break. The inside is a dry white filling that has a vaguely sweet taste when eaten.