Probably around 800 species of trees are found in the Cerrado. Among the most diverse families of trees in the Cerrado are the Leguminosae (153), Malpighiaceae (46), Myrtaceae (43), Melastomataceae (32) and Rubiaceae (30). Much of the Cerrado is dominated by the Vochysiaceae (23 species in the Cerrado) due to the abundance of three species in the genus "Qualea". The herbaceous layer usually reaches about 60 cm in height and is composed mainly of the Poaceae, Cyperaceae, Leguminosae, Compositae, Myrtaceae and Rubiaceae. Much of the vegetation in the gallery forests is similar to nearby rainforest; however, there are some endemic species found only in the Cerrado gallery forests.