Bosistoa floydii grows as a small tree that may reach high and has a spreading crown. The trunk is buttressed and can reach a diameter of , and the bark is grey. The leaves are arranged in opposite pairs on thick green or fawn branches and are pinnate, long on a
petiole long. There are three to seven, usually five glossy elliptical leaflets, each long and wide on a
petiolule long. The leaflets have prominent oli
glands and a pointed tip. Appearing in October and November, the tiny flowers are arranged in panicles up to long. Each flower has five hairy
sepals about long and five oval, white or creamy white
petals long. Flowering is followed by one, or rarely two small, warty, woody, yellow-brown fruit that ripen in February. ==Taxonomy==